Heltec Active Balance BMS On Tesla S Battery Module

Showing some of the basics of my test setup. This active balancer will take energy from the highest cell and shuttle to the lowest cell. Lets see how it works on a salvaged Tesla Model S battery module that is way out of balance. The Heltec BMS needs at least a 10s system to run or you need to feed 40v between ground and B+ to get it to turn on. That is what the far left power supply is doing. The power supply to the right of that is charging one of the Tesla battery modules.