Raged
1 kW
I'd suggest a 14S extension cable and modify it to split the packs into - 5S, 5S, 4S. OR 7S, 7S so you can use cheaper parts to revive the low batteries. A 14S balancer is expensive. A 6S balancer is cheap. A 6S battery medic is even cheaper.
Either way, once you have the balance wire splitter, you can use a battery medic to drain the high cells or a balancer to raise the low cells ( 6S battery medic is under $10). A cheap 8S Balancer like a Turingy 8150 is $50 + power supply (any old ATX PSU that will supply 12v will work).
Battery medic doesn't require external power. It uses the battery power to drain / balance the cells. A Balancer is the same as a BMS but with more smarts.
Alternatively... Just contact Cell Man and tell him of the issues and this thread. He should either sort you out or fix the issues as he sold a defective product.
Either way, once you have the balance wire splitter, you can use a battery medic to drain the high cells or a balancer to raise the low cells ( 6S battery medic is under $10). A cheap 8S Balancer like a Turingy 8150 is $50 + power supply (any old ATX PSU that will supply 12v will work).
Battery medic doesn't require external power. It uses the battery power to drain / balance the cells. A Balancer is the same as a BMS but with more smarts.
Alternatively... Just contact Cell Man and tell him of the issues and this thread. He should either sort you out or fix the issues as he sold a defective product.