You can do a lot with an upgraded battery bank and heavy duty jumper cables .
Two AGM in the diesel pickup .
Two 6 volt GC2 in the RV
HD jumper cables .
We prefer dry camping with no hookups .
We do not have a genny or solar .
We have an annual 9 day campout with friends that do not allow gennys.
None have solar although we have lots of sunshine in CENTRAL Oregon .
We use 12 foot jumper cables to connect the 2 Exide EDGE AGM batteries in our diesel gmc and the 2 group 27 batteries on our trailer .
The pickup gets driven every 3rd day and the EDGE AGM batteries get charged .
We hook back up to the RV batts with our HD jumpers and all 4 batteries equalize .
We do not ( any more ) run the truck to recharge the RV batts .
The advantage of the AGM batteries is multiple .
AGM batteries recharge faster than conventional .
AGM batteries will recover from a Heavy drawdown with less damage to the reserve capacity .
AGM batteries do not leak and corrode your battery tray .
AGM batteries will have a life of 150 % of conventional .
I paid $ 140 each for my group 78 exide EDGE AGM batteries at BiMart .
They come with a 4 year 100 % replacement guarantee .
