Calculating AH usage Based on SOC

red31 wrote:

Gjac wrote:

red31 wrote:
your 230 ah is based on a constant 11.5 a load for 20 hrs.
Used intermittently and at lower load yields a higher capacity.
SoC based on voltage is not that accurate either.

Your simple calc works for me to determine your ave usage in that type weather.
round it up by some factor!

By higher capacity do you mean more than 230 AH's with lower amp draws?

Yes, pianotuner's example misses the other side, ie when low load (amp) are used the capacity is in excess of 100%

One calculator suggests a 4.6 amp load for 60 hrs yields a 60 hr capacity of 276 ah or 120% of the 20hr capacity.

Thanks for posting this, this is very interesting and I did not know this. I dry camped with a friend with 4 6 v GC batteries and he had to recharge every day because of higher amp draws(residential refer) were as my 2 batteries last 6-7 days before they reach 50%.