Electric Cordless Screwdriver Restoration - HITACHI DB3DL2 3.6V

Electric Cordless Screwdriver Restoration HITACHI DB3DL2 3 6V
This video demonstrates how to rebuild the lithium battery. After modification, it can be safely charged without the original charger. Because the reformed lithium battery has overcharge and overdischarge protection, the PCB-related circuits of the original machine are useless. I directly connected the positive and negative poles of the power supply to the switch, bypassing the original PCB.
Hope you like this video!