Downloads
User Manual: Download Manual (6.5mb PDF)
Now updated for the 16s BMS!
iPhone App: xiaoxiang-bms
Android App: version 3.1.1026
(allow 3rd party app to install)
New Desktop App with password reset tool:
Overkill-Solar-bms-tools for Windows
(Download latest release package, unzip and run)
(JBD Chinese version) Desktop App:
JBDTools V2.9-20210524
(unzip and run)
Communication Protocol Documentation
Backup files: BMS_parameter_files.zip
Arduino library: Version 2 (read/write)
Detailed Instructions, 8 cell 24v battery with BMS. PDF
4 cell 12v Wiring Diagram & settings PDF
8 cell 24v Wiring Diagram & settings PDF
16 cell 48v Wiring diagram & settings PDF
Forums:
DiySolarForum.com
Reddit.com/r/OverkillSolarBMS
Education:
https://www.mobile-solarpower.com/
DIY Solar Power with Will Prowse (youtube channel)
About Cell Balancing
Overkill Videos:
YES, these are all terrible. I’m not “a youtuber”. One thing at a time.
Read BMS parameters on an iPhone
Do bigger wires make a difference?
A tool to solder 8ga BMS wires
Tech Support, etc:
For troubleshooting help , please include a screenshot and clear photos of your battery. 9 out of 10 problems are an incorrect setting or an incorrect connection.
Support@OverkillSolar.com