Originally Posted by s/v Jedi
Nonsense. Voltage of a battery under load says less about the battery SOC than my dead granny.
Well any 440 amp bank that can't sustain a 2.5 amp load without dropping to 12.3v and then bouncing back to 12.68 demonstrates a highly sulphated ie high internal resistance. The 20 hr rate for this bank is 23 amps, what does the voltage do under this load...my bet is it drops to a load voltage below 11v.
This will cause problems though-out the system for any motor
loads, not to mention causing higher amp loads for the design wattage.
I didn't say anything about SOC except you can't measure SPG unless you have a resting voltage