Say you have 230 amp hrs in 2 6vGC batteries and you discharge at a low amp rate say 1 amp so if you discharge to 50 percent SOC you should have used 115 amps in 115 hrs. If you then discharge at a higher rate say 10 amps would it then take 11.5 hrs to get to 50 percent SOC? Or does the higher discharge rate create more heat and loss occurs during discharge causing batteries to have less amp hrs?
I assumed this loss in amp hr capacity was due to heat. If this is true, can one also assume that these higher discharge rates producing more heat also reduce battery life every thing else being equal (still only discharging to 50 percent)?
Yes they are all equal. How many you get out of a battery "depends."
Google "Peukert's Law"
1. 1991 Oakland 28DB Class C on Ford E350-460-7.5 Gas EFI Photo in Profile 2. 1991 Bighorn 9.5ft Truck Camper on 2003 Chev 2500HD 6.0 Gas See Profile for Electronic set-ups for 1. and 2.
The lower the rate, the more amp-hours you'll get, except at the very extreme where battery self-discharge comes into play. Trojan, for their T-105, shows these specs:
