CodyClassB wrote:
My RV currently have 1 deep cycle wet battery and I am planning to add another one . Does it have to be same type or can it be AGM battery ?
thanks
They should be the same type, and optimally the same size, capacity, and age.
When 12-volt batteries are used in pairs and wired in parallel, the stronger one will discharge into the weaker one.
If you don't have a smart (3 stage) converter charger, I suggest you put that high on you list. This will cut down on out gassing, maintenance, and preserve the life of your batteries.
