Re: [electricboats] Generator to recharge battery bank

You have ~7.7kWh total capacity in those VRLA batteries.  Considerably less 'net' capacity, when considering lead-acid DOD limits.

Around 3.5 hours of your 2.2kW generator will generate that much energy.  Of course the charger won't be 100% efficient from AC to DC, then lead-acid batteries are not very efficient input-to-output.  So call it four hours, then roughly halve that to keep within a 50% DOD limit.

So yeah, that generator is plenty for that size battery bank.  In the ballpark of two hours should be enough to get from 50% to 100% SOC.

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