Battery Question
We do a lot of dry camping and currently have 2 x 12v batteries in parallel. Batteries are approaching end of life and I’ll be replacing them shortly. I have the space for a third battery, and am th...
Forum Discussion
No reason you can not have 3, or 4 or 5 or 6 or N 12 volt batteries in parallel.
HOWEVER.
Some figures
Group 24 75 AH at the C/20 rate (This is approximate)
Group 27 and 29 just under/over 100
Group 31 130
These are MARINE/deep cycle batteries for the most part (case matters in my post) meaning they are mostly MARINE with lip service to deep cycle, they like to be 75-80% full and do not recover well if you run 'em down too far.
GC-2 pairs (xix volt, two of them wired in series to make 12 volt)
220 amp hours. you can safely use 1/2 of the capacity of these DEEP CYCLE batteries. so for the cost of about two Group 24's you get 110 amp hours usable power.
About the same as with THREE Group 31's but for far less money.
HOWEVER.
Some figures
Group 24 75 AH at the C/20 rate (This is approximate)
Group 27 and 29 just under/over 100
Group 31 130
These are MARINE/deep cycle batteries for the most part (case matters in my post) meaning they are mostly MARINE with lip service to deep cycle, they like to be 75-80% full and do not recover well if you run 'em down too far.
GC-2 pairs (xix volt, two of them wired in series to make 12 volt)
220 amp hours. you can safely use 1/2 of the capacity of these DEEP CYCLE batteries. so for the cost of about two Group 24's you get 110 amp hours usable power.
About the same as with THREE Group 31's but for far less money.
