Howdy all, joining in as I found DIYBMS through some rabbit-hole diving. I’ve been trying to find a good, affordable solution for doing battery management on an electric vehicle conversion I’m planning, and the open source nature of this project + the fact you can have it manufactured and sent to your door makes it theoretically appealing. So far it has seemed to me like the V4.9 would potentially be near-perfect to daisy chain from module to module, with the cell taps populated with each of an EV modules’ cells. Typically nice, small cells are used (as is the case with some Volvo hybrid modules I’m looking at) so the passive balancer top hat should work fantastically. Beyond that, it’s got temperature readouts, great capability for grabbing accurate voltage, and the controller speaks canbus, which should mean it can work just fine with a ZombieVerter VCU.
My main concerns are:
- The cell tap connector and all connectors on the board seem to lack locking tabs. Obviously there’s a few ways to lock the connector in place, but it’s something that requires consideration regardless.
- That I may have some blind spots and missed something else entirely.