Adding a 2nd battery
While dry camping in chilly weather it became apparent that I needed a second battery. I purchased an identical battery to the existing. I'll be routing large diameter cables to connect the 2 togeth...
Forum Discussion
twodownzero wrote:
You should split the trailer's connectors to make them draw more evenly. Also, if your current battery is more than a year old, I highly recommend that you change both of them, and if you have space, buy a real deep cycle battery or batteries rather than another RV battery.
Everything I've read says no. Connect the two in parallel, then the ground from one goes to the trailer ground and the other battery positive goes to the trailer "load" I've heard it referred to as "balanced" that way. Also if you're first battery is very old, or has been mistreated you may not get as much out of the added one as you'd like. And like twodownzero said, buy true deep cycle batteries or two 6 volt golf cart batteries.
