In this video I am going to modify the old batteries from a bosch drill, I will use the 12v BMS module, that is 3S and 3 18650 lithium batteries.
With the help of this type of BMS I will charge the batteries directly from the old charger for ni-cd. the battery is charging and the BMS
disengages at maximum load.

Battery Spot Welder    • DIY Battery Spot Welder / Spot Welder...  

I used in this project
3S40A is the BMS protection board -
BMS PCM Battery Protection Board

AliExpress; https://goo.gl/B3bY7J
Amazon https://amzn.to/2PMT227
Lithium battery (3.7V 3000mAh)
AliExpress http://s.click.aliexpress.com/e/DYGUf6ne
Amazon https://amzn.to/30tfmUp
Nickel tape
AliExpress https://s.click.aliexpress.com/e/_DEh...

I hope you find something useful and enjoy this video!
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