I know very little about electricity! I checked the archives and I found this article, but it did not exactly answer my question: http://gerry.vanagon.com/files/motorhome/Motorhome-Alternator-Charging-Systems.txt I have 2, 6 volt deep cycle batteries hooked up and I have about 200-ish amps (I think) in the aux batteries. This is used to run my Waeco fridge, which takes about 7 amps when it runs, but only runs about every 10 minutes for 2 minutes-ish. Usually I only park for a day or 2 max, so all is OK with the aux battery, but this last trip I stayed parked for 4 or 5 days in a row, and the fridge's 'low battery' light came on. My question is: APPROXIMATELY what is the charge rate IN AMPS for a nice good working system. I say good system as I have a new Zetec engine with a 100+ amp alternator and the wires are all new and the batteries are relatively new. I use a SUREPOWER 1315 isolator for the 2 battery sets. When the battery got low, I took to idling the van for about 15 minutes in the morning, and again 15 minutes in the evening, to help the battery a bit and this seemed to help. Is this folly? Thanks Malcolm |
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