Difference between revisions of "Project:DeWalt Battery Replacement"

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== Charging Station ==
 
== Charging Station ==
 
Since the battery got replaced, we also needed a new charging station:<br/>
 
Since the battery got replaced, we also needed a new charging station:<br/>
[[File:ProjectDeWalt Battery Replacement 1.jpg|x200px]]
+
[[File:ProjectDeWalt Battery Replacement 1.jpg|x200px]]<br/>
 +
The Charging Station is nothing special just an DC to DC converter with Constant Current and Constant Voltage (CC/CV). The Current is set to 0.5A and the Voltage to 12.5V that provides safe charging process.
 +
<br/>
 +
Charging Curve: [[File:Dewalt ladevorgang.png|500px]]<br>
 +
Charging: CC red LED<br>
 +
Battery Full: CV green LED
 +
 
  
  

Latest revision as of 23:27, 17 February 2019

ProjectInfoBox

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
The Charging Station is nothing special just an DC to DC converter with Constant Current and Constant Voltage (CC/CV). The Current is set to 0.5A and the Voltage to 12.5V that provides safe charging process.
Charging Curve: Dewalt ladevorgang.png
Charging: CC red LED
Battery Full: CV green LED