Dril Battery Replacement With Li-Ion Balance Charging

I enplane how to replace drill batteries with Li-ion batteries with connections

I enplane what disadvantages of Li-Ion balance charging That there is no discharge cut of

But the video in Arabic

you can replace with three Li-ion batteries

with the picture you can understand how to wire Battery Tester Monitor Buzzer Alarm for 4S Lipo

Battery.

you will need male female header connector with 5 pins