Battery Question: Combine my batteries?
I've always run 1 of my 2 12V at a time so that if I ran down the 1 I would have a back up. I've never combined them because I've worried I would run them both down and not have a back up. So, wha...
Forum Discussion
Theoretically (Peukert's law) it is the best to tie them together. Ideally they should be same age and size but I have had mixed batteries in the past that gave what they could in terms of available amphours. When dissimilar batteries are used together one will drag the other down as well as having different charging characteristics. Even with those drawbacks two batteries are better than one as long as neither is totally shot.
