Trying to understand and get a descent battery reading since I installed this BMV-712.
I added a RPi 3b+ with VenosOS for monitoring.
Attached is the latest readings from this week.
The numbers don't make sense to me.
I have two golf cart batteries (230Ah each) in series, so 12v with a useable 230 amps (Right?)
So if I have used 82 amps of the 230 as stated by the monitor shouldn't that be 64%, how does the monitor calculate 78%?
Is there a setting to mitigate this error? A setting I've missed?
Also, the (mostly) at rest voltage is 12.17 volts? Is this not considered a battery at roughly 50% charge?
(There are parasitic loads in the trailer, fridge, CO2 Dect. ect that I cannot remove)
I was hoping that this 712BMV help me determine the state of my battery, but I'm as confused as ever!
I just want to get the most out of the batteries without damaging them early.
Attached is the last week of use. battery started from full. Zero Cal was done with everything disconnected with the exception of the BMV itself.