I have a 2007 Axium Mega that was a 12 battery set. I have a petrol generator set up produce 48v/3kw. I am wiring it up in parallel and only have 4 led acid traction batteries that will be charged and used to store and provide power to the motor. As I am moving from a 12 battery set to this new configuration I want to understand how the bms should be connected in order to keep the ecu/bms happy. I am doing this as a learning project and am hoping that this will provide a good solution that can be applied to other small vehicles. Hoping others are also interested love to exchange ideas on how this can work.