ok, I think this is weird so I thought I'd post and see if someone can explain this to me.
I have two 4s 180ah calb 12v batteries setup w/ overkill 120a bms each. I just got done top balancing both batteries. I'm running a test on these batteries. After balancing I tied the two 12v batteries in parallel for a 360ah bank. I hooked up a 750w simple inverter with two big fans and am draining about 68W or 5a out of each battery according to the bluetooth app that comes w/ the overkill. Nice app by the way.
The strange thing is one battery shows 60% SOC at 13.23V and the other shows 83% at 13.22. The cells are all around 3.308-3.310 on the 60% battery, and 3.304-3.307 on the 83% battery. I guess I expected the SOC to be very close between the two battery setups.
Can Anybody explain this?
Thanks!
I have two 4s 180ah calb 12v batteries setup w/ overkill 120a bms each. I just got done top balancing both batteries. I'm running a test on these batteries. After balancing I tied the two 12v batteries in parallel for a 360ah bank. I hooked up a 750w simple inverter with two big fans and am draining about 68W or 5a out of each battery according to the bluetooth app that comes w/ the overkill. Nice app by the way.
The strange thing is one battery shows 60% SOC at 13.23V and the other shows 83% at 13.22. The cells are all around 3.308-3.310 on the 60% battery, and 3.304-3.307 on the 83% battery. I guess I expected the SOC to be very close between the two battery setups.
Can Anybody explain this?
Thanks!