BFL13 wrote:
Because it will be tight, and you don't know your actual daily, but can control that to fit the circumstances, you will need a battery monitor like the Trimetric. That will show your AH usage as you do it, so you can adjust your 12v usage as required.
Great suggestion, but yet another example how costs can rise exponentially once you start thinking of anything more than just one garden variety flooded cell battery! :E Let's see - multiple AGM batteries, new charger, heavier wiring, generator, now a Trimetric, maybe solar down the road, and hey don't forget about an inverter ... for a few days of dry camping? :h Where does it end? ... or does it? :p