I might be more than happy to offer an opinion, but you have left out a lot of vital information as wizard pointed out.
Please fill us in a little and you might get more valuable responses.
Our RV has never had more than a pair of golf cart batteries and we have never been short of power for a single overnight.
Matt
Matt & Mary Colie
A sailor, his bride and their black dogs (one dear dog is waiting for us at the bridge) going to see some dry places that have Geocaches in a coach made the year we married.