BOM-DAT/capacitor-dat/capacitor-super-dat/2024-10-02-20-48-23.png
... ...
Binary files /dev/null and b/BOM-DAT/capacitor-dat/capacitor-super-dat/2024-10-02-20-48-23.png differ
BOM-DAT/capacitor-dat/capacitor-super-dat/capacitor-super-dat.md
... ...
@@ -0,0 +1,76 @@
1
+
2
+# capacitor-super-dat
3
+
4
+
5
+== super-cap == super cap
6
+
7
+## 2.7v super capacitor
8
+
9
+
10
+- 2.7v1.0F 6.3*12(1个)
11
+- 2.7v1.0F 8*12(1个)
12
+- 2.7v1.5F 6.3*12(1个)
13
+- 2.7v2.0F 8*12(1个)
14
+- 2.7v3.3F 6.3*22(1个)
15
+- 2.7v3.3F 8*20(1个)
16
+- 2.7v4.0F 6.3*23(1个)
17
+- 2.7v5.0F 8*20(1个)
18
+- 2.7v5.0F 10*16(1个)
19
+- 2.7v7.0F 8*25(1个)
20
+- 2.7v7.0F 10*21(1个)
21
+- 2.7v10F 10*25.5(1个)
22
+- 2.7v15F 12.5*25(1个)
23
+- 2.7v20F 12.5*25(1个)= 3.2
24
+- 2.7v30F 12.5*31(1个)
25
+
26
+
27
+- 黑2.7V0.3F(10个)
28
+- 2.7V1F(5个)
29
+- 2.7V2F(5个)
30
+- 2.7V3F(5个)
31
+- 3V3F(2个)
32
+- 2.7V3.3F(5个)蓝色
33
+- 3V3.3F(2个)
34
+- 2.7V4F(5个)
35
+- 2.7V4.7F(5个)
36
+- 2.7V5F(1个)
37
+- 2.7V7F(2个)
38
+- 2.7V10F(1个)
39
+- 2.7V15F(1个)
40
+- 3V15F(1个)
41
+- 2.7V18F(1个)
42
+- 3V20F(1个)
43
+- 2.7V22F(1个)
44
+- 2.7V25F(1个)
45
+- 2.7V30F(1个)
46
+- 2.7V35F(1个)
47
+- 2.7V40F(1个)
48
+- 2.7V70F(1个)
49
+- 2.7V100F(1个)= 7
50
+
51
+
52
+
53
+## XH414
54
+
55
+
56
+![](2024-10-02-20-48-23.png)
57
+
58
+- Brand: Seiko Corporation (SII)
59
+- Model: XH414H-1V01E
60
+- Specifications: Thickness 1.4, Diameter 4.8
61
+- Capacitance: 0.08F
62
+- Voltage: 3.3V
63
+- Charging time: 30min
64
+- Weight: 0.07g
65
+- Internal resistance: 80-100 ohms
66
+- Operating temperature range: -20~60 degrees Celsius
67
+
68
+
69
+
70
+
71
+
72
+## ref
73
+
74
+- [[super-cap]]
75
+
76
+- [[battery]]
... ...
\ No newline at end of file
BOM-DAT/mosfet-dat/2026-02-13-14-45-27.png
... ...
Binary files /dev/null and b/BOM-DAT/mosfet-dat/2026-02-13-14-45-27.png differ
BOM-DAT/mosfet-dat/mosfet-dat.md
... ...
@@ -106,6 +106,12 @@ HJ3080A 貼片 TO-252 場效電晶體 替代 SE3080K WP3080K CMD3080M
106 106
- 包装:2500个/盘,可拆散出售。
107 107
- 功能:30V/80A,N沟道场效应管。
108 108
109
+#### high power mosfet design
110
+
111
+![](2026-02-13-14-45-27.png)
112
+
113
+
114
+
109 115
110 116
## un-sorted
111 117
Chip-dat/AOSMD-dat/AOD403-dat.md
... ...
@@ -0,0 +1,10 @@
1
+
2
+
3
+# AOD403-dat.md
4
+
5
+AOD403 == 30V P-Channel MOSFET
6
+
7
+- Vds - -30V
8
+- ID (at Vgs= -20V) - -70A
9
+- Rds(on) (at Vgs= -20V) -- < 6.2mΩ -- (< 6.7mΩ*)
10
+- Rds(on) (at Vgs = -10V) -- < 8mΩ -- (< 8.5mΩ*)
... ...
\ No newline at end of file
Chip-dat/AOSMD-dat/AOSMD-dat.md
... ...
@@ -3,3 +3,4 @@
3 3
4 4
- [[AOD4184-dat]] == AOD4184/AOI4184
5 5
6
+- [[AOD403-dat]]
... ...
\ No newline at end of file
app-dat/Electric-tools-battery-dat/2025-06-05-16-48-47.png
... ...
Binary files a/app-dat/Electric-tools-battery-dat/2025-06-05-16-48-47.png and /dev/null differ
app-dat/Electric-tools-battery-dat/2025-06-05-16-51-39.png
... ...
Binary files a/app-dat/Electric-tools-battery-dat/2025-06-05-16-51-39.png and /dev/null differ
app-dat/Electric-tools-battery-dat/2025-06-10-16-54-11.png
... ...
Binary files a/app-dat/Electric-tools-battery-dat/2025-06-10-16-54-11.png and /dev/null differ
app-dat/Electric-tools-battery-dat/Electric-tools-battery-dat.md
... ...
@@ -1,25 +0,0 @@
1
-
2
-# Electric-tools-dat
3
-
4
-- [[li-battery-app-dat]]
5
-
6
-## electric tools battery pack == 5S
7
-
8
-
9
-- actually only 5S, each battery is 2500mAH
10
-
11
-![](2025-06-05-16-48-47.png)
12
-
13
-How to series connect the battery pack
14
-
15
-![](2025-06-05-16-51-39.png)
16
-
17
-
18
-
19
-## common type electric tools battery pack
20
-
21
-![](2025-06-10-16-54-11.png)
22
-
23
-## ref
24
-
25
-- [[battery-pack-dat]]
... ...
\ No newline at end of file
app-dat/battery-RC-dat/2025-05-12-14-32-59.png
... ...
Binary files /dev/null and b/app-dat/battery-RC-dat/2025-05-12-14-32-59.png differ
app-dat/battery-RC-dat/battery-RC-dat.md
... ...
@@ -0,0 +1,18 @@
1
+
2
+# battery-RC-dat
3
+
4
+![](2025-05-12-14-32-59.png)
5
+
6
+
7
+- Rated Voltage: 7.4V
8
+- Charging Cable: 22AWG-4cm
9
+- Maximum Current: 60A
10
+- Discharge Cable: 17AWG-5.5cm
11
+- **Discharge Rate**: 30C
12
+- Weight: 84.7g
13
+- Default Plug: XT30U
14
+- Dimensions: L123*W19*H17mm
15
+
16
+## ref
17
+
18
+- [[battery-dat]]
... ...
\ No newline at end of file
app-dat/battery-power-tools-dat/2025-06-05-16-48-47.png
... ...
Binary files /dev/null and b/app-dat/battery-power-tools-dat/2025-06-05-16-48-47.png differ
app-dat/battery-power-tools-dat/2025-06-05-16-51-39.png
... ...
Binary files /dev/null and b/app-dat/battery-power-tools-dat/2025-06-05-16-51-39.png differ
app-dat/battery-power-tools-dat/2025-06-10-16-54-11.png
... ...
Binary files /dev/null and b/app-dat/battery-power-tools-dat/2025-06-10-16-54-11.png differ
app-dat/battery-power-tools-dat/battery-power-tools-dat.md
... ...
@@ -0,0 +1,31 @@
1
+
2
+# Electric-tools-dat
3
+
4
+- [[li-battery-app-dat]]
5
+
6
+
7
+
8
+- [[power-tools-dat]] - [[battery-packs-dat]] - [[battery-5s-dat]] - [[battery-4s-dat]]
9
+
10
+
11
+
12
+## electric tools battery pack == 5S
13
+
14
+
15
+- actually only 5S, each battery is 2500mAH
16
+
17
+![](2025-06-05-16-48-47.png)
18
+
19
+How to series connect the battery pack
20
+
21
+![](2025-06-05-16-51-39.png)
22
+
23
+
24
+
25
+## common type electric tools battery pack
26
+
27
+![](2025-06-10-16-54-11.png)
28
+
29
+## ref
30
+
31
+- [[battery-pack-dat]]
... ...
\ No newline at end of file
app-dat/power-tools-dat/power-tools-dat.md
... ...
@@ -1,6 +1,13 @@
1 1
2 2
# power-tools-dat
3 3
4
-- [[li-battery-dat]]
4
+- [[battery-li-dat]]
5
+
6
+- [[battery-power-tools-dat]]
7
+
8
+
9
+- [[power-tools-dat]] - [[battery-packs-dat]] - [[battery-5s-dat]] - [[battery-4s-dat]]
10
+
11
+
12
+
5 13
6
-- [[Electric-tools-battery-dat]]
... ...
\ No newline at end of file
battery-dat/battery-BMS-dat/battery-BMS-dat.md
... ...
@@ -14,11 +14,7 @@
14 14
- [[BMS]]
15 15
16 16
17
-
18
-- [[battery-protector-primary-dat]] - [[battery-protector-secondary-dat]] -[[battery-balance-dat]]
19
-
20
-- [[hycontek-dat]]
21
-
17
+- [[battery-protector-dat]]
22 18
23 19
24 20
## charge and supply 2in1
battery-dat/battery-BMS-dat/battery-protector-dat/battery-protector-dat.md
... ...
@@ -2,7 +2,15 @@
2 2
3 3
- [[battery-1s-dat]]
4 4
5
-- [[battery-pack-dat]]
5
+- [[battery-pack-dat]] - [[battery-packs-dat]]
6
+
7
+- [[battery-dat]]
8
+
9
+
10
+- [[battery-protector-primary-dat]] - [[battery-protector-secondary-dat]] -[[battery-balance-dat]]
11
+
12
+
13
+
6 14
7 15
## full protector
8 16
... ...
@@ -44,44 +52,13 @@
44 52
specs
45 53
46 54
47
-## boards specs for reference only
48
-
49
-### Board inventory — Li‑ion / LiPo (sorted by series then by max current)
50
-
51
-| Product / description | Cell config | Max current | Dimensions (mm) | Notes |
52
-|---|---:|---:|---:|---|
53
-| 3.7V polymer/18650 UPS module 5V/1A | 1S | 1 A (USB) | — | UPS module provides 5V/1A output from battery |
54
-| 3.7V Li‑cell charging protection board (for polymer / 18650) | 1S | — | 30 × 4 | single‑cell protection board |
55
-| 3.7V single‑cell protection module 6‑MOS | 1S | — | 35 × 7 | dual/6 MOSFET topology for low Rds(on) |
56
-| 3.7V Li battery double MOS | 1S | — | 35 × 4 | double‑MOS single‑cell protector |
57
-| 2S protector 16A current limit | 2S | 16 A | 41 × 8 | higher current 2S board |
58
-| 2S protector 10A with balancing | 2S | 10 A | 47.5 × 24 | balance function included |
59
-| 2S battery protection board 7A limit (round) | 2S | 7 A | Ø 17.5 | circular board form factor |
60
-| 2S 7.4V blue board | 2S | — | 40 × 16 | color: blue |
61
-| 3S 12V 18650 protector with balance — 25A OCP | 3S | 25 A | 56 × 45 | balancing + 25A overcurrent protection |
62
-| 3S protector 15A overcurrent | 3S | 15 A | 58 × 20 | mid‑current 3S board |
63
-| 18650 protector 10A — 3S (12V) over‑current protection | 3S | 10 A | 50 × 16 | 3‑series 10A protector |
64
-| 3S 12V 18650 protector 8A | 3S | 8 A | — | 3S 8A protector (two listings) |
65
-| 3S 12V 18650 protector 8A (limit) | 3S | 8 A | — | alternate 3S 8A listing |
66
-| 4S battery protection board — 30A high current | 4S | 30 A | 50 × 22 | high‑current 4S board |
67
-| 4S protector 30A with balancing | 4S | 30 A | 56 × 48 | high current + balance |
68
-| 4S protector 20A current limit | 4S | 20 A | 35 × 35 | current‑limited 4S board |
69
-| 5S battery protection board | 5S | — | 89 × 18 | generic 5S board |
70
-| 6S protector 12A current limit | 6S | 12 A | 54 × 36 | 6S limited current board |
71
-| 6S 18650 protector with balancing | 6S | — | — | balancing supported |
72
-| 3.7V Li‑cell charging protection board (for polymer / 18650) — duplicate listing removed | — | — | — | (duplicate removed) |
73
-
74
-
75
-### Board inventory — LiFePO4 (sorted by max current)
76
-
77
-| Product / description | Cell config | Max current | Dimensions (mm) | Notes |
78
-|---|---:|---:|---:|---|
79
-| 3.2V LiFePO4 protector 25A | 1S (LiFePO4) | 25 A | 51 × 25 | high‑current LiFePO4 single cell board |
80
-| 3.2V LiFePO4 protection board 12A | 1S (LiFePO4) | 12 A | 41 × 12 | single‑cell LiFePO4, 12 A rating |
81
-| 2S LiFePO4 protector 10A with balancing | 2S (LiFePO4) | 10 A | 47.5 × 24 | balance for LiFePO4 cells |
82
-| 2S 6.4V LiFePO4 green board | 2S (LiFePO4) | — | 40 × 16 | LiFePO4 specific (green) |
83
-| 4S LiFePO4 protection board | 4S (LiFePO4) | — | 56 × 47 | LiFePO4 variant |
84
-| 3S 9.6V / 10.8V LiFePO4 protector | 3S (LiFePO4) | — | — | LiFePO4 3‑series protector |
55
+boards specs for reference only
56
+
57
+### mosfet
58
+
59
+- [[mosfet-dat]]
60
+
61
+- 1x [[mosfet-dat]] TO-252 == about 10A
85 62
86 63
87 64
battery-dat/battery-RC-dat/2025-05-12-14-32-59.png
... ...
Binary files a/battery-dat/battery-RC-dat/2025-05-12-14-32-59.png and /dev/null differ
battery-dat/battery-RC-dat/battery-RC-dat.md
... ...
@@ -1,18 +0,0 @@
1
-
2
-# battery-RC-dat
3
-
4
-![](2025-05-12-14-32-59.png)
5
-
6
-
7
-- Rated Voltage: 7.4V
8
-- Charging Cable: 22AWG-4cm
9
-- Maximum Current: 60A
10
-- Discharge Cable: 17AWG-5.5cm
11
-- **Discharge Rate**: 30C
12
-- Weight: 84.7g
13
-- Default Plug: XT30U
14
-- Dimensions: L123*W19*H17mm
15
-
16
-## ref
17
-
18
-- [[battery-dat]]
... ...
\ No newline at end of file
battery-dat/battery-charger-dat/2025-09-03-14-16-10.png
... ...
Binary files a/battery-dat/battery-charger-dat/2025-09-03-14-16-10.png and /dev/null differ
battery-dat/battery-charger-dat/QI-dat/QI-dat.md
... ...
@@ -1,102 +0,0 @@
1
-
2
-# QI-dat
3
-
4
-
5
-
6
-
7
-## board
8
-
9
-- [[OPM1168-dat]] - [[OPM1167-dat]]
10
-
11
-
12
-
13
-
14
-
15
-## 🔋 What is Qi Wireless Charging?
16
-**Qi** (pronounced *"chee"*) is a **wireless power transfer standard** developed by the **Wireless Power Consortium (WPC)**.
17
-It allows devices such as smartphones, earbuds, and wearables to charge **without cables**, using **inductive power transfer**.
18
-
19
----
20
-
21
-## ⚙️ How It Works
22
-Qi charging uses **electromagnetic induction** between two coils:
23
-- **Transmitter coil (Tx)** – in the charging pad/base.
24
-- **Receiver coil (Rx)** – inside the device (e.g., phone or earbuds).
25
-
26
-### Process:
27
-1. The charger creates an **alternating magnetic field**.
28
-2. The receiver coil in the device converts it into **electrical energy**.
29
-3. This energy is used to **charge the battery**.
30
-
31
----
32
-
33
-## ⚡ Technical Details
34
-
35
-| Parameter | Typical Value | Notes |
36
-| ------------------ | ------------- | --------------------------------- |
37
-| **Frequency** | 110–205 kHz | For inductive power transfer |
38
-| **Voltage Output** | 5V / 9V / 12V | Depending on power profile |
39
-| **Power Levels** | 5W, 10W, 15W | Standard Qi power levels |
40
-| **Efficiency** | ~70–85% | Depends on alignment and distance |
41
-| **Distance** | ≤ 5 mm | Coil-to-coil gap must be small |
42
-
43
----
44
-
45
-## 🧩 Qi Power Profiles
46
-| Profile | Power | Usage |
47
-| --------------------------------------- | ---------- | ------------------------------------- |
48
-| **Baseline Power Profile (BPP)** | Up to 5W | Universal compatibility |
49
-| **Extended Power Profile (EPP)** | Up to 15W | Fast wireless charging |
50
-| **Future Qi2 (Magnetic Power Profile)** | Up to 15W+ | Magnetic alignment, higher efficiency |
51
-
52
----
53
-
54
-## 🧲 Qi2 Standard (2023–2025)
55
-The **Qi2** update introduces:
56
-- **Magnetic Power Profile (MPP)** — based on Apple’s **MagSafe** design.
57
-- **Automatic alignment** via magnets for higher efficiency.
58
-- **15W fast charging** standardized for all brands.
59
-- **Backward compatibility** with older Qi devices.
60
-
61
----
62
-
63
-## ✅ Advantages
64
-- No physical cable wear or connector damage.
65
-- Water/dust sealing possible (no exposed port).
66
-- Universal compatibility across many brands.
67
-
68
----
69
-
70
-## ⚠️ Limitations
71
-- Slower than wired fast charging.
72
-- Requires precise coil alignment.
73
-- Generates more heat.
74
-- Charging distance is short (<5 mm).
75
-
76
----
77
-
78
-## 📱 Common Qi-Compatible Devices
79
-- Most modern **Android** phones (Samsung, Xiaomi, Huawei, etc.)
80
-- **Apple iPhones** (iPhone 8 and later)
81
-- **Wireless earbuds** with Qi charging cases
82
-- **Smartwatches** (select models)
83
-
84
----
85
-
86
-## 🧠 Tip
87
-For best performance:
88
-- Use **Qi-certified** chargers.
89
-- Avoid **metal cases** or **thick covers** (>3 mm).
90
-- Center the device properly on the pad.
91
-- Keep the pad **cool and dust-free**.
92
-
93
----
94
-
95
-## 🔌 Example Setup
96
-```text
97
-[Wall Adapter] → [Qi Charger Base (Tx Coil)] ⇄ (Inductive Field) ⇄ [Phone (Rx Coil → Battery)]
98
-
99
-```
100
-## ref
101
-
102
-- [[wireless-charge-dat]] - [[TI-power-dat]]
... ...
\ No newline at end of file
battery-dat/battery-charger-dat/battery-balancer-dat/2025-05-09-12-59-06.png
... ...
Binary files a/battery-dat/battery-charger-dat/battery-balancer-dat/2025-05-09-12-59-06.png and /dev/null differ
battery-dat/battery-charger-dat/battery-balancer-dat/2025-05-09-12-59-34.png
... ...
Binary files a/battery-dat/battery-charger-dat/battery-balancer-dat/2025-05-09-12-59-34.png and /dev/null differ
battery-dat/battery-charger-dat/battery-balancer-dat/2025-05-09-12-59-51.png
... ...
Binary files a/battery-dat/battery-charger-dat/battery-balancer-dat/2025-05-09-12-59-51.png and /dev/null differ
battery-dat/battery-charger-dat/battery-balancer-dat/battery-balancer-dat.md
... ...
@@ -1,33 +0,0 @@
1
-
2
-# battery-balancer-dat
3
-
4
-
5
-## Method 1.
6
-
7
-How to use single [[TP4056-dat]] to charge 2S lithium battery pack?
8
-
9
-The battery should be built with all pins out:
10
-
11
-![](2025-05-09-12-59-06.png)
12
-
13
-parallel charging by [[TP4056-dat]] directly
14
-
15
-![](2025-05-09-12-59-34.png)
16
-
17
-Board looks like:
18
-
19
-![](2025-05-09-12-59-51.png)
20
-
21
-
22
-## Method 2.
23
-
24
-If building your own charger or pack, include a BMS, and use a charger with current limit and CV/CC behavior.
25
-
26
-如果你自己DIY电池组或充电系统,务必使用保护板(BMS),并选择支持恒流恒压输出的充电器。
27
-
28
-
29
-
30
-
31
-## ref
32
-
33
-- [[battery-charger-dat]]
... ...
\ No newline at end of file
battery-dat/battery-charger-dat/battery-charger-dat.md
... ...
@@ -1,133 +0,0 @@
1
-# battery-charge-dat
2
-
3
-
4
-
5
-
6
-
7
-
8
-## info
9
-
10
-https://w.electrodragon.com/w/Category:Battery_Charge
11
-
12
-The most following charger options are for the lithium-ion battery
13
-
14
-- [[2S-lithium-battery-charger-dat]]
15
-
16
-
17
-
18
-- [[BMS-dat]]
19
-
20
-- [[battery-pack-dat]]
21
-
22
-- [[fast-charge-methods-dat]]
23
-
24
-- 1S common option == [[TP4056-dat]]
25
-
26
-
27
-- [[usb-sniffer-dat]]
28
-
29
-
30
-
31
-## Chip Info
32
-
33
-- [[LTC4054-dat]] - [[MCP73831-dat]]
34
-
35
-[[TP-dat]] - [[TP4056-dat]] - [[TP5000-dat]] - [[TP4054-dat]] - [[TP4067-dat]]
36
-
37
-[[injoinic-dat]] - [[IP5306-dat]]
38
-
39
-- [[CN3722-dat]] - [[CN3768-dat]]
40
-
41
-- [[battery-charger-dat]] - [[BT24075-dat]] - [[TI-power-dat]]
42
-
43
-- [[TI-power-dat]]
44
-
45
-- [[battery-charger-dat]] - [[ETA-solutions-dat]]
46
-
47
-- [[CD42-dat]]
48
-
49
-
50
-- [[XL-dat]]
51
-
52
-
53
-
54
-## Board
55
-
56
-- [[OPM1193-dat]] - [[OPM1156-dat]]
57
-
58
-
59
-
60
-## Compare
61
-
62
-| Type | Feature | charge-current |
63
-| -------- | --------------------------------- | -------------- |
64
-| TP5000 | Li-MnO2, LiFePO4(LFP) charger IC, | 0.5A |
65
-| MCP73831 | 0LED indicator | 0.5A |
66
-| TP4056 | Linear charging | ~1A |
67
-| TP4054 |
68
-
69
-
70
-
71
-
72
-## Quick-Charge QC Options
73
-
74
-* FP6719 / FP6717 / FP6291 DC-DC Boost
75
-* PSC5415
76
-* ME2149
77
-* Solution - FP6601 + TPS61088
78
-QC Protocol Identify:
79
-* FM5888
80
-* LI4001 - LI4001是一款面向5V交流适配器的2A锂离子电池充电芯片。采用700KHz开关降压型转换器拓扑结构工作。LI4001包括完整的涓流充电、恒流充电、恒压充电、充电自动终止电路、自动再充电以及过流保护、短路保护电路。最大2A的可编程充电电流与简单的外围电路造就了一种能被嵌入在各种手持式应用中的小型化充电器。由于集成了温度保护、输入欠压闭锁,提高了芯片的应用可靠性。
81
-* BQ24170
82
-* TP5100 - 2A开关降压 8.4V/4.2V锂电池充电器芯片
83
-
84
-
85
-
86
-
87
-## Module LDO RTC
88
-request
89
-* MT2503 ED20 -> 1.1V RTC LDO
90
-* SIM800 -> 2.8V RTC LDO
91
-
92
-
93
-
94
-## voltage map
95
-
96
-| volt | composite | sum |
97
-| ---- | --------- | ----- |
98
-| 4.2 | 2 | 8.4V |
99
-| 4.2 | 3 | 12.6V |
100
-| 4.2 | 4 | 16.8V |
101
-| 4.2 | 5 | 21V |
102
-
103
-
104
-## battery cables
105
-
106
-- [[SM2.54-dat]] - [[JST-dat]] - [[15EDGRKP-3.81mm-dat]] - [[XT-dat]] - [[cable-dat]]
107
-
108
-
109
-## 2S charger
110
-
111
-
112
-- [[battery-pack-dat]]
113
-
114
-![](2025-09-03-14-16-10.png)
115
-
116
-
117
-## test tools
118
-
119
-- [[internal-resistance-meter]] - [[capacity-meter-dat]]
120
-
121
-
122
-
123
-## lower current
124
-
125
-当BOOST连接时,充电电流从100ma增加到300ma,只有当电容容量大于500mAh时才可以连接(避免爆炸💥)。
126
-
127
-
128
-
129
-## ref
130
-
131
-- [[battery-dat]]
132
-
133
-- [[battery-charger]]
battery-dat/battery-charger-dat/fast-charge-methods-dat/USB-PD-dat/USB-PD-dat.md
... ...
@@ -1,10 +0,0 @@
1
-
2
-# USB-PD-dat
3
-
4
-
5
-## board
6
-
7
-- [[OPM1185-dat]]
8
-
9
-## demo video
10
-https://t.me/electrodragon3/404
... ...
\ No newline at end of file
battery-dat/battery-charger-dat/fast-charge-methods-dat/USB-QC-dat.md
... ...
@@ -1,45 +0,0 @@
1
-
2
-# USB-QC-dat
3
-
4
-
5
-- [[fast-charge-methods-dat]] - [[USB-QC-dat]] - [[USB-PD-dat]]
6
-
7
-- [[conn-usb-micro-dat]] - [[conn-usb-type-c-dat]]
8
-
9
-1. Different "Languages" (Protocols)
10
-
11
-QC 2.0: Uses the D+ and D- data lines of a USB cable to negotiate voltage by changing the DC voltage levels on those pins.
12
-
13
-USB PD: Uses a dedicated CC (Configuration Channel) line inside the USB-C cable to send high-speed digital data packets for negotiation.
14
-
15
-2. Physical Interface
16
-
17
-`QC 2.0` was designed for USB-A to Micro-USB cables.
18
-
19
-`USB PD` requires a USB-C to USB-C (or USB-C to Lightning) connection to utilize the CC pin.
20
-
21
-
22
-
23
-USB Charging Compatibility Matrix
24
-
25
-| Power Source (Charger) | Device (Load) | Result | Protocol Negotiation |
26
-| :--------------------- | :------------------------------ | :------------ | :------------------------------------ |
27
-| **QC 2.0 / 3.0** | **USB PD** (e.g., Pixel/iPhone) | **Slow (5V)** | Fails; defaults to standard USB power |
28
-| **USB PD** | **QC 2.0 / 3.0** | **Slow (5V)** | Fails; CC pins vs D+/D- mismatch |
29
-| **QC 4.0 / 4+ / 5.0** | **USB PD** | **Fast** | Compatible (QC 4+ is built on PD) |
30
-| **Multi-Protocol** | **Any** | **Fast** | Charger chip auto-detects protocol |
31
-
32
-
33
-
34
-1. Important Exception: QC 4.0 and Newer
35
-
36
-Starting with Quick Charge 4.0, Qualcomm made their technology compatible with the USB PD standard.
37
-
38
-QC 2.0 / 3.0: Proprietary and Incompatible with PD.
39
-
40
-QC 4.0 / 4+ / 5.0: Built on top of USB PD, so they are compatible.
41
-
42
-## ref
43
-
44
-
45
-- [[m]]
... ...
\ No newline at end of file
battery-dat/battery-charger-dat/fast-charge-methods-dat/fast-charge-methods-dat.md
... ...
@@ -1,127 +0,0 @@
1
-
2
-# fast-charge-methods-dat
3
-
4
-- [[USB-PD-dat]] - [[PD3.0-dat]] - [[PD2.0-dat]]
5
-
6
-
7
-Quick Charge 2.0
8
-
9
-- [[USB-QC-dat]] - [[fitipower-dat]]
10
-
11
-- [[USB-PPS-dat]]
12
-
13
-- [[QC-charge-dat]] - [[PPS-dat]]
14
-
15
-- [[FCP-dat]] - [[SCP-dat]] - [[VOOC-dat]] - [[PE-dat]] - [[AFC-dat]] - [[MTK-PE-dat]]
16
-
17
-- [[wireless-charge-dat]] - [[QI-dat]]
18
-
19
-- [[USB-FC-dat]] - [[USB-FC-trigger-dat/USB-sniffer-dat]] - [[BC1.2-dat]] - [[Apple-2.4A-dat]] - [[DCP-dat]] - [[CDP-dat]] - [[SDP-dat]]
20
-
21
-
22
-
23
-
24
-
25
-# ⚡ Most Popular Fast-Charging Protocols (2025)
26
-
27
-## 🧩 Universal / Cross-Brand Standards
28
-
29
-| Protocol | Organization / Brand | Max Power (Typical) | Notes |
30
-| ------------------------------------------ | -------------------- | -------------------------------------- | ------------------------------------------------------------------------------------------------------------------ |
31
-| **USB Power Delivery (USB-PD)** | USB-IF | Up to **240W** (48V⎓5A) | Widely adopted across laptops, phones, tablets. Supports PPS (Programmable Power Supply) for fine voltage control. |
32
-| **USB PD PPS (Programmable Power Supply)** | USB-IF | Typically **25–45W** for phones | Used by Samsung, Google, etc. Allows dynamic voltage adjustment for efficiency. |
33
-| **Qualcomm Quick Charge (QC)** | Qualcomm | QC 3.0: 18W<br>QC 4+/5: up to 100–240W | Backward-compatible, integrated in many Snapdragon phones. QC5 supports PD. |
34
-
35
----
36
-
37
-## 📱 Brand-Specific Protocols
38
-
39
-| Protocol | Brand | Max Power | Compatible With | Notes |
40
-| ----------------------------------------- | ----------------------- | --------------------- | --------------------------------- | ---------------------------------------------------------------------- |
41
-| **Samsung Adaptive Fast Charging (AFC)** | Samsung | 15W–25W | USB PD PPS (partially compatible) | Older Galaxy models. Replaced by PD PPS. |
42
-| **Apple Fast Charge (PD-based)** | Apple | Up to 27W (iPhone 15) | USB PD PPS | Apple uses PD standard, Lightning or USB-C. |
43
-| **OPPO VOOC / SuperVOOC / SuperVOOC 2.0** | OPPO / OnePlus / Realme | Up to **240W** | Proprietary | Very high current (e.g., 10V⎓24A). Requires special cable and charger. |
44
-| **OnePlus Warp / SuperVOOC** | OnePlus | Up to **150–240W** | OPPO VOOC ecosystem | Rebranded VOOC with special USB-C pins. |
45
-| **Xiaomi HyperCharge / Mi Turbo Charge** | Xiaomi | Up to **210W** | Proprietary | One of the fastest commercial protocols. |
46
-| **Huawei SuperCharge** | Huawei | Up to **100W** | Proprietary | Smart voltage/current adjustment (e.g., 10V⎓4A). |
47
-| **vivo FlashCharge** | vivo | Up to **120W** | Proprietary | Similar to VOOC but not compatible. |
48
-| **MediaTek Pump Express (PE / PE+)** | MediaTek | Up to **30W** | USB PD | Older MTK-based phones; now replaced by PD PPS. |
49
-
50
----
51
-
52
-## 🔌 Laptop / High-Power Devices
53
-
54
-| Protocol | Devices | Max Power | Notes |
55
-| ------------------------------------------------ | ----------------- | --------- | ----------------------------------------- |
56
-| **USB PD 3.1 EPR (Extended Power Range)** | Laptops, monitors | **240W** | Supports 28V, 36V, 48V levels. |
57
-| **Lenovo / Dell / HP Proprietary PD Extensions** | Laptops | 65–240W | PD-compatible but add vendor-specific ID. |
58
-
59
----
60
-
61
-## 💡 Summary
62
-
63
-| Category | Typical Devices | Typical Power |
64
-| ------------------------------- | --------------------------- | ------------- |
65
-| Universal (USB-PD / QC) | Most modern phones, laptops | 18–100W |
66
-| Proprietary (VOOC, SuperCharge) | Chinese brand phones | 30–240W |
67
-| Legacy (AFC, Pump Express) | Older phones | <25W |
68
-
69
----
70
-
71
-✅ **Most common in 2025:**
72
-- **USB Power Delivery (PD + PPS)** → Global standard
73
-- **Qualcomm Quick Charge 4/5** → Common with PD support
74
-- **VOOC / SuperVOOC / HyperCharge** → Popular in Asia
75
-
76
-
77
-
78
-
79
-### ⚡ Most Common Fast Charging Methods (as of 2025)
80
-
81
-| Charging Standard | Used By | Protocol Type | Max Power | Notes |
82
-| -------------------------------------------------------------- | -------------------------------------------- | -------------------------- | ---------------------------- | ----------------------------------------------------------------------------------------------------- |
83
-| **USB Power Delivery (USB-PD / PD 3.0 / PD 3.1 PPS)** | Google, Apple, Samsung, Dell, Lenovo, etc. | Open (industry standard) | Up to **240 W** (PD 3.1 EPR) | 🔹 **Most common and universal** fast-charging standard; used by almost all modern phones and laptops. |
84
-| **Qualcomm Quick Charge (QC 3.0 / 4.0 / 5.0)** | Many Android phones (Xiaomi, Motorola, etc.) | Proprietary | Up to **100 W** | Widely used on Snapdragon-based phones; newer versions are compatible with USB-PD. |
85
-| **Samsung Adaptive Fast Charging / Super Fast Charging (PPS)** | Samsung Galaxy series | Proprietary (PD-PPS based) | Up to **45 W** | Built on USB-PD PPS, ensures better heat control. |
86
-| **OPPO / OnePlus / Realme VOOC / SUPERVOOC / Warp Charge** | OPPO, OnePlus, Realme | Proprietary | 65–240 W | Extremely fast but requires matching charger + cable. |
87
-| **Huawei SuperCharge** | Huawei phones | Proprietary | Up to **100 W** | Uses high current (e.g. 10V/4A) or PD for newer models. |
88
-| **Apple Fast Charging (PD)** | iPhone 8 and newer | USB-PD | Up to **27 W** | Requires USB-C to Lightning or USB-C to USB-C cable. |
89
-
90
-#### 🔋 Summary
91
-- 🌍 **Most universal and widely adopted:** **USB Power Delivery (PD)**
92
-- ⚙️ **Most compatible across brands:** **USB-PD PPS (Programmable Power Supply)**
93
-- ⚡ **Fastest (but proprietary):** **SUPERVOOC / Warp Charge / SuperCharge**
94
-
95
-#### ✅ So, the most commonly used fast charging method overall:
96
-> **USB Power Delivery (USB-PD, especially PD 3.0 / PD 3.1 with PPS)**
97
-
98
-
99
-## boards
100
-
101
-- [[OPM1185-dat]] - [[wch-dat]]
102
-
103
-
104
-## chips
105
-
106
-- [[injoinic-dat]]
107
-
108
-- [[ISW-dat]]
109
-
110
-
111
-
112
-
113
-## apps
114
-
115
-- [[phone-pixel-dat]]
116
-
117
-
118
-
119
-## demo video
120
-
121
-- [[USB-PD-dat]]
122
-
123
-
124
-
125
-## ref
126
-
127
-- [[battery-charger-dat]] - [[battery-dat]]
... ...
\ No newline at end of file
battery-dat/battery-dat.md
... ...
@@ -4,13 +4,30 @@
4 4
5 5
- [[power-dat]] - [[battery-dat]]
6 6
7
-- [[battery-size-dat]]
7
+- [[battery-tools-dat]]
8
+
9
+## BMS
8 10
9 11
- [[battery-BMS-dat]] - [[active-BMS-dat]] - [[passive-BMS-dat]] - [[protection-battery-dat]] - [[protection-dat]]
10 12
11
-- [[battery-dat]] - [[battery-BMS-dat]] - [[protection-battery-dat]]
13
+### protector
14
+
15
+- [[battery-protector-dat]]
16
+
17
+- [[battery-packs-dat]] - [[battery-1s-dat]] - [[battery-2s-dat]] - [[battery-3s-dat]] - [[battery-4s-dat]] - - [[battery-5s-dat]] - [[battery-6s-dat]]
18
+
19
+
20
+
12 21
13 22
23
+## types
24
+
25
+
26
+- [[battery-size-dat]] - [[18650-dat]] - [[26650-dat]]
27
+
28
+
29
+- [[battery-dat]]
30
+
14 31
- [[battery-rechargerable-dat]]
15 32
16 33
- [[lead-acid-battery-dat]] - [[LFP-dat]]
... ...
@@ -46,6 +63,7 @@
46 63
47 64
- [[power-usb-charger-dat]]
48 65
66
+- [[battery-power-tools-dat]]
49 67
50 68
## coin battery dat
51 69
... ...
@@ -148,4 +166,6 @@ Usage: Devices that require more energy or have higher power consumption tend to
148 166
149 167
## ref
150 168
151
-- [[voltage-dat]] - [[power-level-dat]]
... ...
\ No newline at end of file
0
+- [[voltage-dat]] - [[power-level-dat]]
1
+
2
+- [[info]]
... ...
\ No newline at end of file
battery-dat/battery-drainer-dat/battery-drainer-dat.md
... ...
@@ -1,21 +0,0 @@
1
-# battery drainer dat
2
-
3
-
4
-
5
-## boards
6
-
7
-- [[OPM1133-dat]] - [[OPM1134-dat]] - [[OPM1135-dat]]
8
-
9
-- [[OPM1137-dat]]
10
-
11
-## Demo
12
-
13
-- [battery drainer demo 1](https://twitter.com/electro_phoenix/status/1706211461562089835)
14
-- [battery drainer demo 2](https://www.youtube.com/shorts/b3IUuTj2xAk)
15
-- [battery drainer demo 3](https://www.youtube.com/shorts/NJlMkMQhHOI)
16
-
17
-## ref
18
-
19
-
20
-- [[battery-drainer]]
21
-
battery-dat/battery-pack-dat/battery-packs-dat/battery-4S-dat/2026-02-13-14-47-32.png
... ...
Binary files /dev/null and b/battery-dat/battery-pack-dat/battery-packs-dat/battery-4S-dat/2026-02-13-14-47-32.png differ
battery-dat/battery-pack-dat/battery-packs-dat/battery-4S-dat/battery-4S-dat.md
... ...
@@ -0,0 +1,12 @@
1
+
2
+# battery-4S-dat
3
+
4
+- [[battery-packs-dat]]
5
+
6
+25A / D403 - [[AOD403-dat]]
7
+
8
+![](2026-02-13-14-47-32.png)
9
+
10
+
11
+
12
+
battery-dat/battery-pack-dat/battery-packs-dat/battery-5S-dat/battery-5S-dat.md
... ...
@@ -0,0 +1,6 @@
1
+
2
+
3
+# battery-5S-dat
4
+
5
+- [[power-tools-dat]] - [[battery-packs-dat]] - [[battery-5s-dat]] - [[battery-4s-dat]]
6
+
battery-dat/battery-rechargerable-dat/battery-li-dat/li-battery-size-dat/18650-dat/18650-dat.md
... ...
@@ -1,5 +1,9 @@
1 1
2
-# 18650
2
+# 18650-dat
3
+
4
+
5
+
6
+
3 7
4 8
18mm x 65mm
5 9
battery-dat/battery-rechargerable-dat/battery-li-dat/li-battery-size-dat/li-battery-size-dat.md
... ...
@@ -1,12 +1,19 @@
1 1
2 2
# li-battery-size-dat
3 3
4
+
5
+- [[soldering-tools-spot-welding-dat]]
6
+
4 7
- [[32125-dat]]
5 8
6 9
7 10
- [[18650-dat]] - [[21700-dat]] - [[26650-dat]] - [[32650-dat]] - [[32700-dat]] - [[A123-battery-dat]] - [[LFP-battery-dat]] - [[LTO-battery-dat]] - [[LTO-18650-battery-dat]] - [[LTO-26650-battery-dat]] - [[LTO-32700-battery-dat]] - [[LTO-32650-battery-dat]]
8 11
9 12
13
+- [[38120-dat]]
14
+
15
+
16
+
10 17
11 18
12 19
- [[pouch-battery-dat]]
battery-dat/battery-tester-dat/battery-tester-dat.md
... ...
@@ -1,127 +0,0 @@
1
-# battery-tester-dat
2
-
3
-## testing tools
4
-
5
-- capacity - [[electronic-loader-dat]]
6
-- internal resistance == discharge current - [[internal-resistance-meter-dat]]
7
-
8
-
9
-
10
-
11
-## Q: Can I determine a lead‑acid battery's capacity by measuring its voltage with a multimeter for a fixed short time (e.g., 5 minutes)?
12
-
13
-A: No. A 5‑minute voltage reading cannot reliably determine battery capacity.
14
-
15
-Why:
16
-- **Battery voltage is not a direct, linear indicator of remaining capacity**; voltage changes little across much of the discharge curve.
17
-
18
-- Capacity is defined by total charge delivered: Capacity (Ah) = Current (A) × Time (h). You must discharge with a known constant current to a cutoff voltage to measure capacity.
19
-
20
-- A multimeter alone cannot integrate current over time (coulomb counting).
21
-
22
-- Short tests can only give rough hints; extrapolating capacity from a 5‑minute test (even at high current) yields large errors.
23
-
24
-Quick practical checks for battery health:
25
-
26
-- Resting (open‑circuit) voltage: charge fully, wait ~12 hours, then measure. ≳12.6 V indicates generally healthy for a 12 V lead‑acid battery.
27
-- Internal resistance test: fast and useful indicator of capacity degradation.
28
-- Short high‑current load test (starter test): observe voltage sag under load.
29
-
30
-### To measure capacity accurately:
31
-
32
-- Use a constant‑current electronic load or a dedicated battery capacity tester and discharge to a defined cutoff (e.g., 10.5 V for 12 V batteries); record current × time.
33
-- Or use a device that logs current over time (coulomb counter) while discharging.
34
-
35
-### Q: How does a lead‑acid battery's internal resistance typically change after ~200 charge/discharge cycles?
36
-
37
-A: Internal resistance generally increases after repeated cycling, but the magnitude depends on usage conditions.
38
-
39
-Why:
40
-
41
-- Repeated charge/discharge causes sulfation (lead sulfate crystallization 硫化), active‑material shedding, separator aging, and electrolyte stratification — all of which reduce ionic/electronic pathways and raise internal resistance.
42
-
43
-Typical trend (example: small 12 V sealed lead‑acid):
44
-- Factory/new: ~7–9 mΩ (milliohms)
45
-- After ~200 cycles at deep discharge (≈80% DOD): can rise to ~12–18 mΩ
46
-
47
-Notes on variation:
48
-
49
-- Shallow cycling (≈30% DOD) and moderate temperature: resistance may only increase modestly (e.g., 20–30%).
50
-- Deep cycling combined with high temperature: resistance can increase much more, potentially doubling.
51
-
52
-Practical scenarios (examples):
53
-
54
-1) Vehicle or high‑current starter load
55
-
56
-- New battery (low internal resistance): turning the key holds voltage ≳11 V and the engine cranks easily.
57
-- Aged battery (internal resistance increased): voltage may collapse to ~9 V or lower on crank, motor may fail to turn.
58
-- Symptoms: weak cranking sounds, slow or no crank.
59
-
60
-2) Supplying an inverter / UPS under heavy load
61
-
62
-- New battery: inverter sustains heavy load and can deliver ≳80% of nominal capacity.
63
-- High‑resistance battery: voltage drops quickly under load, inverter alarms or shuts down early.
64
-- Symptoms: frequent alarms, early shutdown while capacity still remains in the battery.
65
-
66
-3) Electric scooter / light EV acceleration
67
-
68
-- New battery: small voltage dip on acceleration, smooth power delivery.
69
-- High‑resistance battery: large voltage drop on throttle, controller may trigger low‑voltage protection and cut power intermittently.
70
-- Symptoms: sudden power loss under acceleration, power returns when throttle is released.
71
-
72
-4) Charging behavior
73
-
74
-- New battery: accepts high charge current initially, charges efficiently.
75
-- High‑resistance battery: charge current is limited, charger may switch to float early and report a finished charge even though usable capacity is low.
76
-- Symptoms: charging appears to finish quickly but the battery discharges rapidly in use.
77
-
78
-
79
-## Testing methods
80
-
81
-Detecting capacity and health of used lead‑acid batteries can be divided into quick checks and accurate tests. Below is a complete procedure you can choose from depending on available tools.
82
-
83
-1) Quick checks (minutes)
84
-
85
-- Resting (open‑circuit) voltage — rough check:
86
- - Charge fully, then rest for ~12 hours before measuring.
87
- - ≳12.6 V: generally healthy
88
- - 12.4–12.5 V: moderate degradation
89
- - ≤12.3 V: likely aged or discharged
90
- - Note: This only indicates state of charge/obvious aging, not true capacity.
91
-
92
-- Internal resistance test (recommended):
93
- - Use a battery internal‑resistance meter (inexpensive handheld units to mid‑range testers).
94
- - Example guidance:
95
- - Small 12 V, 7 Ah battery: <20 mΩ healthy; 30–40 mΩ fair; >50 mΩ scrap.
96
- - Automotive starting batteries: internal resistance is on the order of tens of milliohms; a noticeable increase vs. new indicates degraded performance.
97
-
98
-- Instant voltage‑drop (load) test — simple practical check:
99
- - Connect a known heavy load (e.g., high‑beam headlight or ~100 W resistor) and observe the instantaneous voltage drop.
100
- - New battery: drop typically ≤0.4–0.5 V
101
- - Aged battery: instantaneous drop may exceed 1.0 V
102
-
103
-2) Accurate testing (hours)
104
-
105
-- Constant‑current discharge capacity test (gold standard):
106
- - Fully charge the battery (use appropriate charger, e.g., 14.4 V CV for 12 V lead‑acid until absorption/current falls).
107
- - Rest the battery with charger disconnected for ≥2 hours.
108
- - Discharge at a constant current (recommended 0.05C–0.1C; e.g., for 100 Ah battery use 5–10 A) down to the cutoff voltage (commonly 10.5 V for 12 V batteries).
109
- - Calculate capacity: Capacity (Ah) = Discharge current (A) × Discharge time (h).
110
- - Example: 5 A discharge to 10.5 V took 15 h → capacity = 5 × 15 = 75 Ah. If measured capacity < 80% of rated, the battery is significantly aged.
111
-
112
-3) Good / bad reference (example thresholds)
113
-
114
-| Status | Resting voltage (12 V battery) | Internal resistance (automotive, mΩ) | Measured capacity | Conclusion |
115
-|----------|-------------------------------:|-------------------------------------:|------------------:|-----------|
116
-| Excellent| ≥ 12.6 V | ≤ 8 mΩ | ≥ 90% | Healthy |
117
-| Moderate | 12.4–12.5 V | 9–15 mΩ | 70–90% | Usable |
118
-| Poor | ≤ 12.3 V | 15–25 mΩ | 50–70% | Marginal |
119
-| Scrap | ≤ 12.0 V | ≥ 25 mΩ | < 50% | Replace |
120
-
121
-
122
-
123
-
124
-
125
-## ref
126
-
127
-- [[battery-dat]] - [[power-dat]]
... ...
\ No newline at end of file
battery-dat/battery-tools-dat/battery-charger-dat/2025-09-03-14-16-10.png
... ...
Binary files /dev/null and b/battery-dat/battery-tools-dat/battery-charger-dat/2025-09-03-14-16-10.png differ
battery-dat/battery-tools-dat/battery-charger-dat/QI-dat/QI-dat.md
... ...
@@ -0,0 +1,102 @@
1
+
2
+# QI-dat
3
+
4
+
5
+
6
+
7
+## board
8
+
9
+- [[OPM1168-dat]] - [[OPM1167-dat]]
10
+
11
+
12
+
13
+
14
+
15
+## 🔋 What is Qi Wireless Charging?
16
+**Qi** (pronounced *"chee"*) is a **wireless power transfer standard** developed by the **Wireless Power Consortium (WPC)**.
17
+It allows devices such as smartphones, earbuds, and wearables to charge **without cables**, using **inductive power transfer**.
18
+
19
+---
20
+
21
+## ⚙️ How It Works
22
+Qi charging uses **electromagnetic induction** between two coils:
23
+- **Transmitter coil (Tx)** – in the charging pad/base.
24
+- **Receiver coil (Rx)** – inside the device (e.g., phone or earbuds).
25
+
26
+### Process:
27
+1. The charger creates an **alternating magnetic field**.
28
+2. The receiver coil in the device converts it into **electrical energy**.
29
+3. This energy is used to **charge the battery**.
30
+
31
+---
32
+
33
+## ⚡ Technical Details
34
+
35
+| Parameter | Typical Value | Notes |
36
+| ------------------ | ------------- | --------------------------------- |
37
+| **Frequency** | 110–205 kHz | For inductive power transfer |
38
+| **Voltage Output** | 5V / 9V / 12V | Depending on power profile |
39
+| **Power Levels** | 5W, 10W, 15W | Standard Qi power levels |
40
+| **Efficiency** | ~70–85% | Depends on alignment and distance |
41
+| **Distance** | ≤ 5 mm | Coil-to-coil gap must be small |
42
+
43
+---
44
+
45
+## 🧩 Qi Power Profiles
46
+| Profile | Power | Usage |
47
+| --------------------------------------- | ---------- | ------------------------------------- |
48
+| **Baseline Power Profile (BPP)** | Up to 5W | Universal compatibility |
49
+| **Extended Power Profile (EPP)** | Up to 15W | Fast wireless charging |
50
+| **Future Qi2 (Magnetic Power Profile)** | Up to 15W+ | Magnetic alignment, higher efficiency |
51
+
52
+---
53
+
54
+## 🧲 Qi2 Standard (2023–2025)
55
+The **Qi2** update introduces:
56
+- **Magnetic Power Profile (MPP)** — based on Apple’s **MagSafe** design.
57
+- **Automatic alignment** via magnets for higher efficiency.
58
+- **15W fast charging** standardized for all brands.
59
+- **Backward compatibility** with older Qi devices.
60
+
61
+---
62
+
63
+## ✅ Advantages
64
+- No physical cable wear or connector damage.
65
+- Water/dust sealing possible (no exposed port).
66
+- Universal compatibility across many brands.
67
+
68
+---
69
+
70
+## ⚠️ Limitations
71
+- Slower than wired fast charging.
72
+- Requires precise coil alignment.
73
+- Generates more heat.
74
+- Charging distance is short (<5 mm).
75
+
76
+---
77
+
78
+## 📱 Common Qi-Compatible Devices
79
+- Most modern **Android** phones (Samsung, Xiaomi, Huawei, etc.)
80
+- **Apple iPhones** (iPhone 8 and later)
81
+- **Wireless earbuds** with Qi charging cases
82
+- **Smartwatches** (select models)
83
+
84
+---
85
+
86
+## 🧠 Tip
87
+For best performance:
88
+- Use **Qi-certified** chargers.
89
+- Avoid **metal cases** or **thick covers** (>3 mm).
90
+- Center the device properly on the pad.
91
+- Keep the pad **cool and dust-free**.
92
+
93
+---
94
+
95
+## 🔌 Example Setup
96
+```text
97
+[Wall Adapter] → [Qi Charger Base (Tx Coil)] ⇄ (Inductive Field) ⇄ [Phone (Rx Coil → Battery)]
98
+
99
+```
100
+## ref
101
+
102
+- [[wireless-charge-dat]] - [[TI-power-dat]]
... ...
\ No newline at end of file
battery-dat/battery-tools-dat/battery-charger-dat/battery-balancer-dat/2025-05-09-12-59-06.png
... ...
Binary files /dev/null and b/battery-dat/battery-tools-dat/battery-charger-dat/battery-balancer-dat/2025-05-09-12-59-06.png differ
battery-dat/battery-tools-dat/battery-charger-dat/battery-balancer-dat/2025-05-09-12-59-34.png
... ...
Binary files /dev/null and b/battery-dat/battery-tools-dat/battery-charger-dat/battery-balancer-dat/2025-05-09-12-59-34.png differ
battery-dat/battery-tools-dat/battery-charger-dat/battery-balancer-dat/2025-05-09-12-59-51.png
... ...
Binary files /dev/null and b/battery-dat/battery-tools-dat/battery-charger-dat/battery-balancer-dat/2025-05-09-12-59-51.png differ
battery-dat/battery-tools-dat/battery-charger-dat/battery-balancer-dat/battery-balancer-dat.md
... ...
@@ -0,0 +1,33 @@
1
+
2
+# battery-balancer-dat
3
+
4
+
5
+## Method 1.
6
+
7
+How to use single [[TP4056-dat]] to charge 2S lithium battery pack?
8
+
9
+The battery should be built with all pins out:
10
+
11
+![](2025-05-09-12-59-06.png)
12
+
13
+parallel charging by [[TP4056-dat]] directly
14
+
15
+![](2025-05-09-12-59-34.png)
16
+
17
+Board looks like:
18
+
19
+![](2025-05-09-12-59-51.png)
20
+
21
+
22
+## Method 2.
23
+
24
+If building your own charger or pack, include a BMS, and use a charger with current limit and CV/CC behavior.
25
+
26
+如果你自己DIY电池组或充电系统,务必使用保护板(BMS),并选择支持恒流恒压输出的充电器。
27
+
28
+
29
+
30
+
31
+## ref
32
+
33
+- [[battery-charger-dat]]
... ...
\ No newline at end of file
battery-dat/battery-tools-dat/battery-charger-dat/battery-charger-dat.md
... ...
@@ -0,0 +1,133 @@
1
+# battery-charge-dat
2
+
3
+
4
+
5
+
6
+
7
+
8
+## info
9
+
10
+https://w.electrodragon.com/w/Category:Battery_Charge
11
+
12
+The most following charger options are for the lithium-ion battery
13
+
14
+- [[2S-lithium-battery-charger-dat]]
15
+
16
+
17
+
18
+- [[BMS-dat]]
19
+
20
+- [[battery-pack-dat]]
21
+
22
+- [[fast-charge-methods-dat]]
23
+
24
+- 1S common option == [[TP4056-dat]]
25
+
26
+
27
+- [[usb-sniffer-dat]]
28
+
29
+
30
+
31
+## Chip Info
32
+
33
+- [[LTC4054-dat]] - [[MCP73831-dat]]
34
+
35
+[[TP-dat]] - [[TP4056-dat]] - [[TP5000-dat]] - [[TP4054-dat]] - [[TP4067-dat]]
36
+
37
+[[injoinic-dat]] - [[IP5306-dat]]
38
+
39
+- [[CN3722-dat]] - [[CN3768-dat]]
40
+
41
+- [[battery-charger-dat]] - [[BT24075-dat]] - [[TI-power-dat]]
42
+
43
+- [[TI-power-dat]]
44
+
45
+- [[battery-charger-dat]] - [[ETA-solutions-dat]]
46
+
47
+- [[CD42-dat]]
48
+
49
+
50
+- [[XL-dat]]
51
+
52
+
53
+
54
+## Board
55
+
56
+- [[OPM1193-dat]] - [[OPM1156-dat]]
57
+
58
+
59
+
60
+## Compare
61
+
62
+| Type | Feature | charge-current |
63
+| -------- | --------------------------------- | -------------- |
64
+| TP5000 | Li-MnO2, LiFePO4(LFP) charger IC, | 0.5A |
65
+| MCP73831 | 0LED indicator | 0.5A |
66
+| TP4056 | Linear charging | ~1A |
67
+| TP4054 |
68
+
69
+
70
+
71
+
72
+## Quick-Charge QC Options
73
+
74
+* FP6719 / FP6717 / FP6291 DC-DC Boost
75
+* PSC5415
76
+* ME2149
77
+* Solution - FP6601 + TPS61088
78
+QC Protocol Identify:
79
+* FM5888
80
+* LI4001 - LI4001是一款面向5V交流适配器的2A锂离子电池充电芯片。采用700KHz开关降压型转换器拓扑结构工作。LI4001包括完整的涓流充电、恒流充电、恒压充电、充电自动终止电路、自动再充电以及过流保护、短路保护电路。最大2A的可编程充电电流与简单的外围电路造就了一种能被嵌入在各种手持式应用中的小型化充电器。由于集成了温度保护、输入欠压闭锁,提高了芯片的应用可靠性。
81
+* BQ24170
82
+* TP5100 - 2A开关降压 8.4V/4.2V锂电池充电器芯片
83
+
84
+
85
+
86
+
87
+## Module LDO RTC
88
+request
89
+* MT2503 ED20 -> 1.1V RTC LDO
90
+* SIM800 -> 2.8V RTC LDO
91
+
92
+
93
+
94
+## voltage map
95
+
96
+| volt | composite | sum |
97
+| ---- | --------- | ----- |
98
+| 4.2 | 2 | 8.4V |
99
+| 4.2 | 3 | 12.6V |
100
+| 4.2 | 4 | 16.8V |
101
+| 4.2 | 5 | 21V |
102
+
103
+
104
+## battery cables
105
+
106
+- [[SM2.54-dat]] - [[JST-dat]] - [[15EDGRKP-3.81mm-dat]] - [[XT-dat]] - [[cable-dat]]
107
+
108
+
109
+## 2S charger
110
+
111
+
112
+- [[battery-pack-dat]]
113
+
114
+![](2025-09-03-14-16-10.png)
115
+
116
+
117
+## test tools
118
+
119
+- [[internal-resistance-meter]] - [[capacity-meter-dat]]
120
+
121
+
122
+
123
+## lower current
124
+
125
+当BOOST连接时,充电电流从100ma增加到300ma,只有当电容容量大于500mAh时才可以连接(避免爆炸💥)。
126
+
127
+
128
+
129
+## ref
130
+
131
+- [[battery-dat]]
132
+
133
+- [[battery-charger]]
battery-dat/battery-tools-dat/battery-charger-dat/fast-charge-methods-dat/USB-PD-dat/USB-PD-dat.md
... ...
@@ -0,0 +1,10 @@
1
+
2
+# USB-PD-dat
3
+
4
+
5
+## board
6
+
7
+- [[OPM1185-dat]]
8
+
9
+## demo video
10
+https://t.me/electrodragon3/404
... ...
\ No newline at end of file
battery-dat/battery-tools-dat/battery-charger-dat/fast-charge-methods-dat/USB-QC-dat.md
... ...
@@ -0,0 +1,45 @@
1
+
2
+# USB-QC-dat
3
+
4
+
5
+- [[fast-charge-methods-dat]] - [[USB-QC-dat]] - [[USB-PD-dat]]
6
+
7
+- [[conn-usb-micro-dat]] - [[conn-usb-type-c-dat]]
8
+
9
+1. Different "Languages" (Protocols)
10
+
11
+QC 2.0: Uses the D+ and D- data lines of a USB cable to negotiate voltage by changing the DC voltage levels on those pins.
12
+
13
+USB PD: Uses a dedicated CC (Configuration Channel) line inside the USB-C cable to send high-speed digital data packets for negotiation.
14
+
15
+2. Physical Interface
16
+
17
+`QC 2.0` was designed for USB-A to Micro-USB cables.
18
+
19
+`USB PD` requires a USB-C to USB-C (or USB-C to Lightning) connection to utilize the CC pin.
20
+
21
+
22
+
23
+USB Charging Compatibility Matrix
24
+
25
+| Power Source (Charger) | Device (Load) | Result | Protocol Negotiation |
26
+| :--------------------- | :------------------------------ | :------------ | :------------------------------------ |
27
+| **QC 2.0 / 3.0** | **USB PD** (e.g., Pixel/iPhone) | **Slow (5V)** | Fails; defaults to standard USB power |
28
+| **USB PD** | **QC 2.0 / 3.0** | **Slow (5V)** | Fails; CC pins vs D+/D- mismatch |
29
+| **QC 4.0 / 4+ / 5.0** | **USB PD** | **Fast** | Compatible (QC 4+ is built on PD) |
30
+| **Multi-Protocol** | **Any** | **Fast** | Charger chip auto-detects protocol |
31
+
32
+
33
+
34
+1. Important Exception: QC 4.0 and Newer
35
+
36
+Starting with Quick Charge 4.0, Qualcomm made their technology compatible with the USB PD standard.
37
+
38
+QC 2.0 / 3.0: Proprietary and Incompatible with PD.
39
+
40
+QC 4.0 / 4+ / 5.0: Built on top of USB PD, so they are compatible.
41
+
42
+## ref
43
+
44
+
45
+- [[m]]
... ...
\ No newline at end of file
battery-dat/battery-tools-dat/battery-charger-dat/fast-charge-methods-dat/fast-charge-methods-dat.md
... ...
@@ -0,0 +1,127 @@
1
+
2
+# fast-charge-methods-dat
3
+
4
+- [[USB-PD-dat]] - [[PD3.0-dat]] - [[PD2.0-dat]]
5
+
6
+
7
+Quick Charge 2.0
8
+
9
+- [[USB-QC-dat]] - [[fitipower-dat]]
10
+
11
+- [[USB-PPS-dat]]
12
+
13
+- [[QC-charge-dat]] - [[PPS-dat]]
14
+
15
+- [[FCP-dat]] - [[SCP-dat]] - [[VOOC-dat]] - [[PE-dat]] - [[AFC-dat]] - [[MTK-PE-dat]]
16
+
17
+- [[wireless-charge-dat]] - [[QI-dat]]
18
+
19
+- [[USB-FC-dat]] - [[USB-FC-trigger-dat/USB-sniffer-dat]] - [[BC1.2-dat]] - [[Apple-2.4A-dat]] - [[DCP-dat]] - [[CDP-dat]] - [[SDP-dat]]
20
+
21
+
22
+
23
+
24
+
25
+# ⚡ Most Popular Fast-Charging Protocols (2025)
26
+
27
+## 🧩 Universal / Cross-Brand Standards
28
+
29
+| Protocol | Organization / Brand | Max Power (Typical) | Notes |
30
+| ------------------------------------------ | -------------------- | -------------------------------------- | ------------------------------------------------------------------------------------------------------------------ |
31
+| **USB Power Delivery (USB-PD)** | USB-IF | Up to **240W** (48V⎓5A) | Widely adopted across laptops, phones, tablets. Supports PPS (Programmable Power Supply) for fine voltage control. |
32
+| **USB PD PPS (Programmable Power Supply)** | USB-IF | Typically **25–45W** for phones | Used by Samsung, Google, etc. Allows dynamic voltage adjustment for efficiency. |
33
+| **Qualcomm Quick Charge (QC)** | Qualcomm | QC 3.0: 18W<br>QC 4+/5: up to 100–240W | Backward-compatible, integrated in many Snapdragon phones. QC5 supports PD. |
34
+
35
+---
36
+
37
+## 📱 Brand-Specific Protocols
38
+
39
+| Protocol | Brand | Max Power | Compatible With | Notes |
40
+| ----------------------------------------- | ----------------------- | --------------------- | --------------------------------- | ---------------------------------------------------------------------- |
41
+| **Samsung Adaptive Fast Charging (AFC)** | Samsung | 15W–25W | USB PD PPS (partially compatible) | Older Galaxy models. Replaced by PD PPS. |
42
+| **Apple Fast Charge (PD-based)** | Apple | Up to 27W (iPhone 15) | USB PD PPS | Apple uses PD standard, Lightning or USB-C. |
43
+| **OPPO VOOC / SuperVOOC / SuperVOOC 2.0** | OPPO / OnePlus / Realme | Up to **240W** | Proprietary | Very high current (e.g., 10V⎓24A). Requires special cable and charger. |
44
+| **OnePlus Warp / SuperVOOC** | OnePlus | Up to **150–240W** | OPPO VOOC ecosystem | Rebranded VOOC with special USB-C pins. |
45
+| **Xiaomi HyperCharge / Mi Turbo Charge** | Xiaomi | Up to **210W** | Proprietary | One of the fastest commercial protocols. |
46
+| **Huawei SuperCharge** | Huawei | Up to **100W** | Proprietary | Smart voltage/current adjustment (e.g., 10V⎓4A). |
47
+| **vivo FlashCharge** | vivo | Up to **120W** | Proprietary | Similar to VOOC but not compatible. |
48
+| **MediaTek Pump Express (PE / PE+)** | MediaTek | Up to **30W** | USB PD | Older MTK-based phones; now replaced by PD PPS. |
49
+
50
+---
51
+
52
+## 🔌 Laptop / High-Power Devices
53
+
54
+| Protocol | Devices | Max Power | Notes |
55
+| ------------------------------------------------ | ----------------- | --------- | ----------------------------------------- |
56
+| **USB PD 3.1 EPR (Extended Power Range)** | Laptops, monitors | **240W** | Supports 28V, 36V, 48V levels. |
57
+| **Lenovo / Dell / HP Proprietary PD Extensions** | Laptops | 65–240W | PD-compatible but add vendor-specific ID. |
58
+
59
+---
60
+
61
+## 💡 Summary
62
+
63
+| Category | Typical Devices | Typical Power |
64
+| ------------------------------- | --------------------------- | ------------- |
65
+| Universal (USB-PD / QC) | Most modern phones, laptops | 18–100W |
66
+| Proprietary (VOOC, SuperCharge) | Chinese brand phones | 30–240W |
67
+| Legacy (AFC, Pump Express) | Older phones | <25W |
68
+
69
+---
70
+
71
+✅ **Most common in 2025:**
72
+- **USB Power Delivery (PD + PPS)** → Global standard
73
+- **Qualcomm Quick Charge 4/5** → Common with PD support
74
+- **VOOC / SuperVOOC / HyperCharge** → Popular in Asia
75
+
76
+
77
+
78
+
79
+### ⚡ Most Common Fast Charging Methods (as of 2025)
80
+
81
+| Charging Standard | Used By | Protocol Type | Max Power | Notes |
82
+| -------------------------------------------------------------- | -------------------------------------------- | -------------------------- | ---------------------------- | ----------------------------------------------------------------------------------------------------- |
83
+| **USB Power Delivery (USB-PD / PD 3.0 / PD 3.1 PPS)** | Google, Apple, Samsung, Dell, Lenovo, etc. | Open (industry standard) | Up to **240 W** (PD 3.1 EPR) | 🔹 **Most common and universal** fast-charging standard; used by almost all modern phones and laptops. |
84
+| **Qualcomm Quick Charge (QC 3.0 / 4.0 / 5.0)** | Many Android phones (Xiaomi, Motorola, etc.) | Proprietary | Up to **100 W** | Widely used on Snapdragon-based phones; newer versions are compatible with USB-PD. |
85
+| **Samsung Adaptive Fast Charging / Super Fast Charging (PPS)** | Samsung Galaxy series | Proprietary (PD-PPS based) | Up to **45 W** | Built on USB-PD PPS, ensures better heat control. |
86
+| **OPPO / OnePlus / Realme VOOC / SUPERVOOC / Warp Charge** | OPPO, OnePlus, Realme | Proprietary | 65–240 W | Extremely fast but requires matching charger + cable. |
87
+| **Huawei SuperCharge** | Huawei phones | Proprietary | Up to **100 W** | Uses high current (e.g. 10V/4A) or PD for newer models. |
88
+| **Apple Fast Charging (PD)** | iPhone 8 and newer | USB-PD | Up to **27 W** | Requires USB-C to Lightning or USB-C to USB-C cable. |
89
+
90
+#### 🔋 Summary
91
+- 🌍 **Most universal and widely adopted:** **USB Power Delivery (PD)**
92
+- ⚙️ **Most compatible across brands:** **USB-PD PPS (Programmable Power Supply)**
93
+- ⚡ **Fastest (but proprietary):** **SUPERVOOC / Warp Charge / SuperCharge**
94
+
95
+#### ✅ So, the most commonly used fast charging method overall:
96
+> **USB Power Delivery (USB-PD, especially PD 3.0 / PD 3.1 with PPS)**
97
+
98
+
99
+## boards
100
+
101
+- [[OPM1185-dat]] - [[wch-dat]]
102
+
103
+
104
+## chips
105
+
106
+- [[injoinic-dat]]
107
+
108
+- [[ISW-dat]]
109
+
110
+
111
+
112
+
113
+## apps
114
+
115
+- [[phone-pixel-dat]]
116
+
117
+
118
+
119
+## demo video
120
+
121
+- [[USB-PD-dat]]
122
+
123
+
124
+
125
+## ref
126
+
127
+- [[battery-charger-dat]] - [[battery-dat]]
... ...
\ No newline at end of file
battery-dat/battery-tools-dat/battery-drainer-dat/battery-drainer-dat.md
... ...
@@ -0,0 +1,21 @@
1
+# battery drainer dat
2
+
3
+
4
+
5
+## boards
6
+
7
+- [[OPM1133-dat]] - [[OPM1134-dat]] - [[OPM1135-dat]]
8
+
9
+- [[OPM1137-dat]]
10
+
11
+## Demo
12
+
13
+- [battery drainer demo 1](https://twitter.com/electro_phoenix/status/1706211461562089835)
14
+- [battery drainer demo 2](https://www.youtube.com/shorts/b3IUuTj2xAk)
15
+- [battery drainer demo 3](https://www.youtube.com/shorts/NJlMkMQhHOI)
16
+
17
+## ref
18
+
19
+
20
+- [[battery-drainer]]
21
+
battery-dat/battery-tools-dat/battery-tester-dat/battery-tester-dat.md
... ...
@@ -0,0 +1,127 @@
1
+# battery-tester-dat
2
+
3
+## testing tools
4
+
5
+- capacity - [[electronic-loader-dat]]
6
+- internal resistance == discharge current - [[internal-resistance-meter-dat]]
7
+
8
+
9
+
10
+
11
+## Q: Can I determine a lead‑acid battery's capacity by measuring its voltage with a multimeter for a fixed short time (e.g., 5 minutes)?
12
+
13
+A: No. A 5‑minute voltage reading cannot reliably determine battery capacity.
14
+
15
+Why:
16
+- **Battery voltage is not a direct, linear indicator of remaining capacity**; voltage changes little across much of the discharge curve.
17
+
18
+- Capacity is defined by total charge delivered: Capacity (Ah) = Current (A) × Time (h). You must discharge with a known constant current to a cutoff voltage to measure capacity.
19
+
20
+- A multimeter alone cannot integrate current over time (coulomb counting).
21
+
22
+- Short tests can only give rough hints; extrapolating capacity from a 5‑minute test (even at high current) yields large errors.
23
+
24
+Quick practical checks for battery health:
25
+
26
+- Resting (open‑circuit) voltage: charge fully, wait ~12 hours, then measure. ≳12.6 V indicates generally healthy for a 12 V lead‑acid battery.
27
+- Internal resistance test: fast and useful indicator of capacity degradation.
28
+- Short high‑current load test (starter test): observe voltage sag under load.
29
+
30
+### To measure capacity accurately:
31
+
32
+- Use a constant‑current electronic load or a dedicated battery capacity tester and discharge to a defined cutoff (e.g., 10.5 V for 12 V batteries); record current × time.
33
+- Or use a device that logs current over time (coulomb counter) while discharging.
34
+
35
+### Q: How does a lead‑acid battery's internal resistance typically change after ~200 charge/discharge cycles?
36
+
37
+A: Internal resistance generally increases after repeated cycling, but the magnitude depends on usage conditions.
38
+
39
+Why:
40
+
41
+- Repeated charge/discharge causes sulfation (lead sulfate crystallization 硫化), active‑material shedding, separator aging, and electrolyte stratification — all of which reduce ionic/electronic pathways and raise internal resistance.
42
+
43
+Typical trend (example: small 12 V sealed lead‑acid):
44
+- Factory/new: ~7–9 mΩ (milliohms)
45
+- After ~200 cycles at deep discharge (≈80% DOD): can rise to ~12–18 mΩ
46
+
47
+Notes on variation:
48
+
49
+- Shallow cycling (≈30% DOD) and moderate temperature: resistance may only increase modestly (e.g., 20–30%).
50
+- Deep cycling combined with high temperature: resistance can increase much more, potentially doubling.
51
+
52
+Practical scenarios (examples):
53
+
54
+1) Vehicle or high‑current starter load
55
+
56
+- New battery (low internal resistance): turning the key holds voltage ≳11 V and the engine cranks easily.
57
+- Aged battery (internal resistance increased): voltage may collapse to ~9 V or lower on crank, motor may fail to turn.
58
+- Symptoms: weak cranking sounds, slow or no crank.
59
+
60
+2) Supplying an inverter / UPS under heavy load
61
+
62
+- New battery: inverter sustains heavy load and can deliver ≳80% of nominal capacity.
63
+- High‑resistance battery: voltage drops quickly under load, inverter alarms or shuts down early.
64
+- Symptoms: frequent alarms, early shutdown while capacity still remains in the battery.
65
+
66
+3) Electric scooter / light EV acceleration
67
+
68
+- New battery: small voltage dip on acceleration, smooth power delivery.
69
+- High‑resistance battery: large voltage drop on throttle, controller may trigger low‑voltage protection and cut power intermittently.
70
+- Symptoms: sudden power loss under acceleration, power returns when throttle is released.
71
+
72
+4) Charging behavior
73
+
74
+- New battery: accepts high charge current initially, charges efficiently.
75
+- High‑resistance battery: charge current is limited, charger may switch to float early and report a finished charge even though usable capacity is low.
76
+- Symptoms: charging appears to finish quickly but the battery discharges rapidly in use.
77
+
78
+
79
+## Testing methods
80
+
81
+Detecting capacity and health of used lead‑acid batteries can be divided into quick checks and accurate tests. Below is a complete procedure you can choose from depending on available tools.
82
+
83
+1) Quick checks (minutes)
84
+
85
+- Resting (open‑circuit) voltage — rough check:
86
+ - Charge fully, then rest for ~12 hours before measuring.
87
+ - ≳12.6 V: generally healthy
88
+ - 12.4–12.5 V: moderate degradation
89
+ - ≤12.3 V: likely aged or discharged
90
+ - Note: This only indicates state of charge/obvious aging, not true capacity.
91
+
92
+- Internal resistance test (recommended):
93
+ - Use a battery internal‑resistance meter (inexpensive handheld units to mid‑range testers).
94
+ - Example guidance:
95
+ - Small 12 V, 7 Ah battery: <20 mΩ healthy; 30–40 mΩ fair; >50 mΩ scrap.
96
+ - Automotive starting batteries: internal resistance is on the order of tens of milliohms; a noticeable increase vs. new indicates degraded performance.
97
+
98
+- Instant voltage‑drop (load) test — simple practical check:
99
+ - Connect a known heavy load (e.g., high‑beam headlight or ~100 W resistor) and observe the instantaneous voltage drop.
100
+ - New battery: drop typically ≤0.4–0.5 V
101
+ - Aged battery: instantaneous drop may exceed 1.0 V
102
+
103
+2) Accurate testing (hours)
104
+
105
+- Constant‑current discharge capacity test (gold standard):
106
+ - Fully charge the battery (use appropriate charger, e.g., 14.4 V CV for 12 V lead‑acid until absorption/current falls).
107
+ - Rest the battery with charger disconnected for ≥2 hours.
108
+ - Discharge at a constant current (recommended 0.05C–0.1C; e.g., for 100 Ah battery use 5–10 A) down to the cutoff voltage (commonly 10.5 V for 12 V batteries).
109
+ - Calculate capacity: Capacity (Ah) = Discharge current (A) × Discharge time (h).
110
+ - Example: 5 A discharge to 10.5 V took 15 h → capacity = 5 × 15 = 75 Ah. If measured capacity < 80% of rated, the battery is significantly aged.
111
+
112
+3) Good / bad reference (example thresholds)
113
+
114
+| Status | Resting voltage (12 V battery) | Internal resistance (automotive, mΩ) | Measured capacity | Conclusion |
115
+|----------|-------------------------------:|-------------------------------------:|------------------:|-----------|
116
+| Excellent| ≥ 12.6 V | ≤ 8 mΩ | ≥ 90% | Healthy |
117
+| Moderate | 12.4–12.5 V | 9–15 mΩ | 70–90% | Usable |
118
+| Poor | ≤ 12.3 V | 15–25 mΩ | 50–70% | Marginal |
119
+| Scrap | ≤ 12.0 V | ≥ 25 mΩ | < 50% | Replace |
120
+
121
+
122
+
123
+
124
+
125
+## ref
126
+
127
+- [[battery-dat]] - [[power-dat]]
... ...
\ No newline at end of file
battery-dat/battery-tools-dat/battery-tools-dat.md
... ...
@@ -0,0 +1,39 @@
1
+
2
+
3
+# battery-tools-dat
4
+
5
+- [[battery-dat]]
6
+
7
+### charger
8
+
9
+- [[battery-charger-dat]]
10
+
11
+
12
+
13
+### battery tools == for battery pack build
14
+
15
+- [[tools-dat]] - [[soldering-tools-spot-welding-dat]]
16
+
17
+- Nickel Strip / copper strip == 铝片和铜片,电池点焊用的,铝片适合铝壳电池,铜片适合铁壳电池
18
+
19
+- [[internal-resistance-meter-dat]]
20
+
21
+- 青稞纸电池垫 == 使用在电池点焊前,贴在18650电池前,防止压迫导致电池塑料纸损坏,造成电池短路
22
+
23
+- 青稞纸 == 青稞纸基本都是最后出场,作为电池绝缘和减震的重要部分
24
+
25
+- 硅胶电线 == 链接电池用的,硅胶耐高温,相比一般电线胶皮的上锡的时候不会融化。
26
+
27
+- [[battery-manager-dat]]
28
+
29
+[LittloKala M4S](https://www.liito-kala.com/page92?product_id=31)
30
+
31
+- CHARGE: Charges the battery to full
32
+- DISCHARGE: Discharge the battery to empty.
33
+- TEST: Test battery capacity.
34
+- STORAGE: Charge the battery voltage to 3.8V or discharge the battery voltage to 3.8V.
35
+
36
+## ref
37
+
38
+
39
+
battery-dat/super-cap-dat/2024-10-02-20-48-23.png
... ...
Binary files a/battery-dat/super-cap-dat/2024-10-02-20-48-23.png and /dev/null differ
battery-dat/super-cap-dat/super-cap-dat.md
... ...
@@ -1,74 +0,0 @@
1
-
2
-# super-cap-dat
3
-
4
-
5
-## 2.7v super capacitor
6
-
7
-
8
-- 2.7v1.0F 6.3*12(1个)
9
-- 2.7v1.0F 8*12(1个)
10
-- 2.7v1.5F 6.3*12(1个)
11
-- 2.7v2.0F 8*12(1个)
12
-- 2.7v3.3F 6.3*22(1个)
13
-- 2.7v3.3F 8*20(1个)
14
-- 2.7v4.0F 6.3*23(1个)
15
-- 2.7v5.0F 8*20(1个)
16
-- 2.7v5.0F 10*16(1个)
17
-- 2.7v7.0F 8*25(1个)
18
-- 2.7v7.0F 10*21(1个)
19
-- 2.7v10F 10*25.5(1个)
20
-- 2.7v15F 12.5*25(1个)
21
-- 2.7v20F 12.5*25(1个)= 3.2
22
-- 2.7v30F 12.5*31(1个)
23
-
24
-
25
-- 黑2.7V0.3F(10个)
26
-- 2.7V1F(5个)
27
-- 2.7V2F(5个)
28
-- 2.7V3F(5个)
29
-- 3V3F(2个)
30
-- 2.7V3.3F(5个)蓝色
31
-- 3V3.3F(2个)
32
-- 2.7V4F(5个)
33
-- 2.7V4.7F(5个)
34
-- 2.7V5F(1个)
35
-- 2.7V7F(2个)
36
-- 2.7V10F(1个)
37
-- 2.7V15F(1个)
38
-- 3V15F(1个)
39
-- 2.7V18F(1个)
40
-- 3V20F(1个)
41
-- 2.7V22F(1个)
42
-- 2.7V25F(1个)
43
-- 2.7V30F(1个)
44
-- 2.7V35F(1个)
45
-- 2.7V40F(1个)
46
-- 2.7V70F(1个)
47
-- 2.7V100F(1个)= 7
48
-
49
-
50
-
51
-## XH414
52
-
53
-
54
-![](2024-10-02-20-48-23.png)
55
-
56
-- Brand: Seiko Corporation (SII)
57
-- Model: XH414H-1V01E
58
-- Specifications: Thickness 1.4, Diameter 4.8
59
-- Capacitance: 0.08F
60
-- Voltage: 3.3V
61
-- Charging time: 30min
62
-- Weight: 0.07g
63
-- Internal resistance: 80-100 ohms
64
-- Operating temperature range: -20~60 degrees Celsius
65
-
66
-
67
-
68
-
69
-
70
-## ref
71
-
72
-- [[super-cap]]
73
-
74
-- [[battery]]
... ...
\ No newline at end of file
fab-dat/fab-PCB-dat/spot-welding-dat/2025-06-13-13-43-52.png
... ...
Binary files a/fab-dat/fab-PCB-dat/spot-welding-dat/2025-06-13-13-43-52.png and /dev/null differ
fab-dat/fab-PCB-dat/spot-welding-dat/spot-welding-dat.md
... ...
@@ -1,13 +0,0 @@
1
-
2
-# spot-welding-dat
3
-
4
-![](2025-06-13-13-43-52.png)
5
-
6
-specifically for [[battery-dat]]
7
-
8
-
9
-## ref
10
-
11
-- [[battery-dat]]
12
-
13
-- [[spot-welding]] - [[soldering]]
... ...
\ No newline at end of file
tools-dat/soldering-tools-dat/soldering-tools-spot-welding-dat/2025-06-13-13-43-52.png
... ...
Binary files /dev/null and b/tools-dat/soldering-tools-dat/soldering-tools-spot-welding-dat/2025-06-13-13-43-52.png differ
tools-dat/soldering-tools-dat/soldering-tools-spot-welding-dat/soldering-tools-spot-welding-dat.md
... ...
@@ -0,0 +1,27 @@
1
+
2
+# soldering-tools-spot-welding-dat
3
+
4
+
5
+- Nickel Strip
6
+
7
+
8
+## cap super spot soldering
9
+
10
+- [[capacitor-super-dat]] - [[capacitor-dat]]
11
+
12
+![](2025-06-13-13-43-52.png)
13
+
14
+specifically for [[battery-dat]]
15
+
16
+
17
+
18
+激光转镍
19
+
20
+
21
+
22
+
23
+## ref
24
+
25
+- [[battery-dat]]
26
+
27
+- [[soldering-tools-spot-welding]] - [[soldering-tools]]
... ...
\ No newline at end of file