It sounds like your generator produces AC to you charger, is that correct? If you want to duplicate what you were doing you would need a separate inverter to take the DC from your alternator to AC.
Perhaps you are wondering if you can charge your batteries directly from the DC output of your alternator? It is possible, depending on the technical specs on your batteries, but won't be as good for your batteries as a three-stage charger. Your battery bank is pretty large. If you could get 100A out of the alternator that would be 10%, a good charge rate for FLA batteries and a bit low for AGM.
How many amps is your charger? You could acquire an inverter that could handle it and save your batteries until you come up with a better solution.
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Hi, There heavy duty leisure batteris, sealed and charged from generator to battery charger AC-DCLeave a comment:
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What kind of batteries are they? Also, how was your generator charging them, directly from DC or AC to a charger?Leave a comment:
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charging batteries with a car alternator.
Hi just been sitting in the sun after finding that my single cylinder diesel generator has died again ! This time the rotor has a fault and needs to be rewound or replaced, replacing would be with complete alternator or whole gen as my diesel engine has seen better days, so that would be the chosen route, how ever I don't and cant spend £1300 on this. While contemplating my next move and after talking to the gen people, who said the single cylinder engine is really meant as back up power and as Iam off grid need something better suited to longer running. They suggested a 3 cylinder water cooled diesel unit at about 3 times the price, doh ! So as said, while sitting in the sun, I thought I have a 2007 diesel dumper parked out the back, now not used much. If I was to change the alternator from what I guess is a small 50amp to, for example, a 130amp unit could I charge my battery bank with this. My battery bank ( I know should not be 12v but it is ) consists off 10x 115ah at 12v. Might be the sun on my head but would this work ?
Any help full advise needed.
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