Project:DeWalt Battery Replacement

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DeWalt baterry replacement

ProjectDeWalt Battery Replacement 0.jpg
Status: done
Release Date: October 2018
Initiator:
Team: Johannes
Materials Used: DeWalt cordless drill with broken battery, 3S lipo, a balancer bord,
Software Used: Fusion 360
Approx. Cost: approx. 10 € (without the battery)


Our dewalt cordless drill had a broken battery which needed to be replaced. In order to replace it, we used LiPo batteries with a custom charging curcuit. In addition to this page, the discussions during the replacement can be read on github. Once done, you can find the repaired drill on the drilling table again!

Battery Circuit

connections between Battery and Protection Circuit:
the inside of the Battery
Originally, the battery circuit was using a 20A protection circuit:
connections between Battery and Protection Circuit
This was modified in order to support 30A:
how i made a 30A protection circuit out of an 20A protection circuit

The battery case had to be recreated. This was done using the 3D Printer. The files can be found here.


Charging Station

Since the battery got replaced, we also needed a new charging station:
ProjectDeWalt Battery Replacement 1.jpg