The QSO Battery Active Balancer Upgrade. And how a tiny switch makes a simple task impossible!

DIY Solar

One of my complaints about the QSO battery was, that the cells were not top balanced when it was delivered. The BMS turned off charging at around 55V and prevented the internal balancer from doings its job (balance start voltage is set to 3.45V which is 55.2V pack voltage).

Credit Off-Grid Garage

Please support our Sponsors here : Greenworks Tools - 80V Greenworks Tools - 80V