I have 3 “ROCK 100”
LiFePO4 providing 300ah charged from a DC-DC controller. These
batteries have Bluetooth so I am able to connect to each one to see what is going on. What I have noticed is that under normal loads (eg fridge,
water pressure etc) only one
battery is “discharging”, the rest are not accepting charge (they are already charged) but are also not “contributing”. The
battery doing the
work is closest in the parallel chain to the terminals (load). Is this normal? Does it also mean I should “rotate” the
batteries every now and then to even out the wear?
Also, I assume the other batteries will "come on line" when the voltage falls to some level, but won't this result in a large load flowing to the battery that is "most flat"?