How to convert cordless drill's 14.4 Volts Ni-Cd battery into Li-on 18650 battery... HD

Hi Guys here is the new video: How to convert cordless drill's 14.4 Volts Ni-Cd battery into Li-on battery / Hx-4S-A01 BMS.from my "Electrical and electronics projects" "E&EP" Channel. In this...