Lfp battery primarily used as backup will be float charged indefinitely at 3.370v/cell Why not have the balancer active at this voltage? The charts I can find show this as a safe and fully charged condition for LFP. If it takes days or weeks to balance and fully charge at this voltage it's no big deal.
When in regular solar service, the End of charge voltage will be 3.45-3.55/cell because the batteries would not have extended charge times at 3.37v to charge and balance properly.
Change my mind...
When in regular solar service, the End of charge voltage will be 3.45-3.55/cell because the batteries would not have extended charge times at 3.37v to charge and balance properly.
Change my mind...