Red-Rover wrote:
Golf cart batteries are only manufactured in 6 volt or 8 volt. It's pretty common to wire two 6 volt batteries in series for use as a 12 volt house supply but if you don't have room for two batteries then best to stick with a "Deep Cycle" battery, like a marine battery in 12 Volt.
12 volt golf car battery at Sam's Club20 amp hour rate:155
That is more than a Group 31.. Slightly more than a pair of Group 24s
But the biggest advantage over those Group 24,27,29,31 is that this is a TRUE DEEP CYCLE battery,,, So you can take it to 50 percent State of Charge without doing major Damage.. MARINE/deep cycle, should not be run down that far.