Fixing an Old Drill Battery With 18650 Cells

Published at : 18 Dec 2025

In this video, I fixed my old drill battery with 18650 cells.
Using Power Delivery and QC3.0, this battery now has Fast Charging over USB Type C!

The chapters:
00:00 - Intro
01:04 - The components
03:22 - The enclosure
03:43 - Proof of concept
05:58 - The build
08:37 - The end

The components I used:

-USB-C PD Charger;
https://s.click.aliexpress.com/e/_DD0MuVv

-BMS Board;
https://s.click.aliexpress.com/e/_Dep9MP5

-Voltmeter;
https://s.click.aliexpress.com/e/_DkduTCz

-Push Button Switch;
https://s.click.aliexpress.com/e/_DDXjxgV

-3mm LEDs;
https://s.click.aliexpress.com/e/_DEtldfF