Changes in 591c66e: bat

				Tech-dat/power-dat/battery-dat/battery-dat.md
			
          @@ -55,8 +55,35 @@ Stable chemistry: Their chemical structure is more resistant to thermal changes,

           | **LR927**        | 9.5 x 2.7 mm   | 1.5V        | 30-45 mAh     | ~0.5-3 mA                                 | Laser pointers, small toys   | Small, used in low-power gadgets                  |

          +## AA vs. AAA 

          +| **Feature**          | **AA Battery**                       | **AAA Battery**                    |

          +|----------------------|--------------------------------------|------------------------------------|

          +| **Size**             | 14.5 mm (diameter) x 50.5 mm (length) | 10.5 mm (diameter) x 44.5 mm (length) |

          +| **Voltage**          | 1.5V (Alkaline) / 1.2V (Rechargeable NiMH) | 1.5V (Alkaline) / 1.2V (Rechargeable NiMH) |

          +| **Capacity**         | 2000-3000 mAh (Alkaline)             | 600-1200 mAh (Alkaline)            |

          +| **Current Capability**| 700-1000 mA sustained               | 300-500 mA sustained               |

          +| **Typical Use**      | Medium to high-power devices: flashlights, toys, wireless mice, clocks | Low-power devices: remote controls, small toys, wireless keyboards |

          +| **Weight**           | Approx. 23 g (Alkaline)              | Approx. 11.5 g (Alkaline)          |

          +| **Cost**             | Generally slightly more expensive per battery | Slightly less expensive per battery |

          +| **Energy Density**   | Higher capacity and energy per unit  | Lower capacity due to smaller size |

          +| **Runtime**          | Longer due to higher capacity        | Shorter due to lower capacity      |

          +| **Features**         | Ideal for devices that require more power and have higher current demands | Ideal for smaller devices that require less power and a more compact size |

          +

          +

          +Key Differences:

          +

          +Size: AA batteries are larger than AAA batteries, both in diameter and length. This difference in size translates to a larger energy storage capacity for AA batteries.

          +

          +Capacity: AA batteries typically have 2-3 times the capacity of AAA batteries. This means AA batteries will last longer in devices that use the same amount of power.

          +

          +Current Capability: AA batteries can deliver higher currents (700-1000 mA), making them better suited for devices that need more power, such as flashlights, toys, and certain electronics. AAA batteries, due to their smaller size, typically provide lower current (300-500 mA), which is suitable for low-power devices like remote controls and wireless keyboards.

          +

          +Weight: AA batteries are about twice as heavy as AAA batteries due to their larger size and greater energy storage.

          +

          +Usage: Devices that require more energy or have higher power consumption tend to use AA batteries, while devices that prioritize size and weight, like remotes and small electronics, often use AAA batteries.

          +

           ## ref

				Tech-dat/power-dat/battery-dat/battery-holder-dat/AA-battery-holder-dat/2024-09-22-00-21-47.png
			
          Binary files /dev/null and b/Tech-dat/power-dat/battery-dat/battery-holder-dat/AA-battery-holder-dat/2024-09-22-00-21-47.png differ

				Tech-dat/power-dat/battery-dat/battery-holder-dat/AA-battery-holder-dat/AA-battery-holder-dat.md
			
          @@ -1,8 +1,14 @@

           # AA-battery-holder-dat 

          +

          +## PCB type 

          +

           ![](2024-03-28-18-04-58.png)

          +## PCB PTH soldering 

          +

          +![](2024-09-22-00-21-47.png)

           ## ref

...	...	@@ -55,8 +55,35 @@ Stable chemistry: Their chemical structure is more resistant to thermal changes,
55	55	\| LR927 \| 9.5 x 2.7 mm \| 1.5V \| 30-45 mAh \| ~0.5-3 mA \| Laser pointers, small toys \| Small, used in low-power gadgets \|
56	56
57	57
	58	+## AA vs. AAA
58	59
59	60
	61	+\| Feature \| AA Battery \| AAA Battery \|
	62	+\|----------------------\|--------------------------------------\|------------------------------------\|
	63	+\| Size \| 14.5 mm (diameter) x 50.5 mm (length) \| 10.5 mm (diameter) x 44.5 mm (length) \|
	64	+\| Voltage \| 1.5V (Alkaline) / 1.2V (Rechargeable NiMH) \| 1.5V (Alkaline) / 1.2V (Rechargeable NiMH) \|
	65	+\| Capacity \| 2000-3000 mAh (Alkaline) \| 600-1200 mAh (Alkaline) \|
	66	+\| Current Capability\| 700-1000 mA sustained \| 300-500 mA sustained \|
	67	+\| Typical Use \| Medium to high-power devices: flashlights, toys, wireless mice, clocks \| Low-power devices: remote controls, small toys, wireless keyboards \|
	68	+\| Weight \| Approx. 23 g (Alkaline) \| Approx. 11.5 g (Alkaline) \|
	69	+\| Cost \| Generally slightly more expensive per battery \| Slightly less expensive per battery \|
	70	+\| Energy Density \| Higher capacity and energy per unit \| Lower capacity due to smaller size \|
	71	+\| Runtime \| Longer due to higher capacity \| Shorter due to lower capacity \|
	72	+\| Features \| Ideal for devices that require more power and have higher current demands \| Ideal for smaller devices that require less power and a more compact size \|
	73	+
	74	+
	75	+Key Differences:
	76	+
	77	+Size: AA batteries are larger than AAA batteries, both in diameter and length. This difference in size translates to a larger energy storage capacity for AA batteries.
	78	+
	79	+Capacity: AA batteries typically have 2-3 times the capacity of AAA batteries. This means AA batteries will last longer in devices that use the same amount of power.
	80	+
	81	+Current Capability: AA batteries can deliver higher currents (700-1000 mA), making them better suited for devices that need more power, such as flashlights, toys, and certain electronics. AAA batteries, due to their smaller size, typically provide lower current (300-500 mA), which is suitable for low-power devices like remote controls and wireless keyboards.
	82	+
	83	+Weight: AA batteries are about twice as heavy as AAA batteries due to their larger size and greater energy storage.
	84	+
	85	+Usage: Devices that require more energy or have higher power consumption tend to use AA batteries, while devices that prioritize size and weight, like remotes and small electronics, often use AAA batteries.
	86	+
60	87
61	88	## ref
62	89

...	...	@@ -1,8 +1,14 @@
1	1
2	2	# AA-battery-holder-dat
3	3
	4	+
	5	+## PCB type
	6	+
4	7	![](2024-03-28-18-04-58.png)
5	8
	9	+## PCB PTH soldering
	10	+
	11	+![](2024-09-22-00-21-47.png)
6	12
7	13	## ref
8	14