Drill Battery Rebuild - NiCd to Lithium

Drill/ screwdriver battery rebuild to Lithium using battery holder for 18650 cells (so no spot welding needed) and BMS. After rebuild original charger can be used for charge.

Part list:

• Battery holder for 18650 size batteries
• 3x Sony VTC4 18650 2100mAh 30A batteries
• BMS to control charge/ discharge

At first I soldered wires to battery holder, after that soldered BMS board and battery pack plug

BMS was glued to battery holder using double sided tape

Little bit of cutting and now batteries fit battery pack case

Then secured using electrical tape

Check fit, done

As BMS was used, original charger can be used for charging

It was quick and simple battery pack rebuild

Screwdriver works as expected