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Bosch 24V Rotary Hammer Drill Restoration Video
Original Battery Pack (Nimh)
20 cells x 1.5V = 30V (Nimh 1.5V fully charged)
New Battery Pack (Lithium)
7 cells x 4.2v = 29.4V (Lithium 4.2V fully charged)
Capacity 4Ah (In the video 6Ah is not correct)
Battery lithium cell
Brand Dmegc
Model INR18650 20P
Capacity 2000 mAh
Typical voltage 3.7V
Internal resistance (1KHz) ≤ 18mΩ
Standard charge and discharge current 0.5C
Standard charge and discharge cut-off voltage 4.2V/2.5V
Maximum continuous charge and discharge current 2C/20A
Cyclelife ≥ 500 times
Size 18 * 65 mm
Weight 45g
BMS 7S30A
Rated working voltage 30V
Rated discharge current 30A
Peak starting current 60A
Overcharge protection
Over discharge protection
Overcurrent protection
Short circuit protection
Internal resistance 10 m Ω
Current consumption 15 μA
Operating temperature -45°C to 85°C
Physical dimension L60*W23*T5mm
I hope you find this video useful and enjoy!
I am happy to receive feedback, suggestions to improve myself.
!!! I'm sorry for the mistake if I did this video !!!
** I still keep some parts, I want to help preserve the world environment **
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Have a nice day
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