Originally Posted by FC7039
What makes a RV or marine battery better?
Well you need to pay attention to what kind of marine battery, there are 3 types;
1 marine cranking
2 marine combined cranking/deep cycle
3 marine deep cycle
You want a RV or marine deep cycle battery, the deep cycle batteries are designed for low amp draw, for long and deep discharge (deep discharge then charge is a "cycle" and where they get the name deep cycle).
As in run the lights, radio, ect.... for several hours to several days then charge.
Golf cart batteries are also deep cycle and work good to except most golf cart batteries are 6V and you need 2 in series to get 12V
The cranking batteries are designed for high amp draw, short discharge.
As in start the engine then charge.
The combined cranking/deep cycle are a compromise and not best at either.