All battery manufacture the max charge current of 10 to 13% of the batteries capacity. Assuming you have 4 - 225 ah 6 volt batteries the is 450 ah so the max charge rate for bulk charging would be around 60 amps. If you draw those batteries down to 50% capacity it will take about 5 hours to fully charge the batteries (2 hours of bulk and 3 hours of adsorption).
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Jim & Roy Davis
2016 Hurricane 31S
1961 Rampside in tow
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