i have found group 31 batteries for a little over 100.00 each and they are 12 volt is this a good price for these and they will be going in a 2005 winnabago vectra with a 8.9isl engine
I have found East Penn battery manufacturing co make a true Deep Cycle battery in a group 31. It is Not a combination start/deep cycle. I installed 3 of them last year and have been very pleased with their performance while dry camping.