Update: V1.3 now supports the ability to flip around the board and have the connectors on the opposite side of the battery modules. The file has been updated to latest version

This project lets you replace the Proprietary BMS board found on the Jepp Cherokee Ev lithium battery modules with a simple breakout board for use in DIY open source projects, like DIY car conversions or Diy solar storage battery systems.t

This is the OEM bms board

On the Left you have the OEM PCB, on the left you have open source replacement breakout board.

Here are all the parts needed to complete this project:

12s Battery module : https://jag35.com/products/jeep-cherokee-phev-44v-battery-modules-samsung-cells-13s

PCB : Downloable on this page

Socket connector : https://s.click.aliexpress.com/e/_DeLrHg7

18pin balance connector : https://s.click.aliexpress.com/e/_DeLrHg7

2pin thermistor header : https://s.click.aliexpress.com/e/_DeHXI3l

Project Video