Sizing generator to charge batteries
I currently have two costco "rv/marine" batteries which are due to be replaced. Planning to get 2x230 AH 6v Duracells for a total of 230 AH If the batteries are half empty, I have to charge 115 AH ...
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Maybe your peak charging rates will be 30-45 amps, but only for a while, because the charger will taper off currentv as battery voltage rises. If only the battery charger is connected, 800W to 1000W is certainly adequate, assuming there is nothing else connected to the 120V load. If you are charging using your DC converter/charger, you need to size the generator for at least the converter max input, which should be labeled.
