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.
SoundGuy wrote:
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
BFL13 wrote:
The OP should do the math like I did there, only with four batteries instead of two. That would bring out Mr Wizard's and others' point on that, where two batts could be too "tight"
Note also that the charging rate percentage goes down when you add AH to the bank. Also he has that 3000 gen to run a bigger charger.
100 amps/ 400 AH = 25%, well under that 30% spec.
Hey, it's only money $$$$ right?! :p Remember, this all started with the OP wanting to do a one off 4 day dry camping trip this fall. :R