As we started travelling full time in June 2018 the single 12V battery in Dora went bad. I'd decided to change to two 6V deep cycle golf cart batteries when this happened. So, I obtained two Interstate GC2 Deep Cycle Extreme batteries rated at 225 AHr.

The single 12V battery was OK for our minimal electrical needs. However, these new batteries nearly double our AHr capacity giving a good reserve.