Forum Discussion
Golden_HVAC
Aug 16, 2015Explorer
50 amps X 14 volts = 700 watts. The charger should not draw more than about 750 watts, including a little efficiency loss in the charger.
Depending on your battery size, you probably can not charge the battery at more than 40 amps for more than a few minutes.
I have a 70 amp charger in my motorhome, and a set of 4 golf cart batteries. They are rated at 440 amp hours @12 volts. When it was -150 AH, I was able to charge at 50 amps for about 10 minutes, and by 20 minutes the charge rate had slowed to around 40 amps. Then I shut off the generator, and let my 400 watt solar finish the charging.
So yes, 1000 watts is fine. 2,000 watts is better, and slightly more weight and initial cost.
Mayberrys.com probably has a much better price (including shipping) than a local dealer.
Fred.
Depending on your battery size, you probably can not charge the battery at more than 40 amps for more than a few minutes.
I have a 70 amp charger in my motorhome, and a set of 4 golf cart batteries. They are rated at 440 amp hours @12 volts. When it was -150 AH, I was able to charge at 50 amps for about 10 minutes, and by 20 minutes the charge rate had slowed to around 40 amps. Then I shut off the generator, and let my 400 watt solar finish the charging.
So yes, 1000 watts is fine. 2,000 watts is better, and slightly more weight and initial cost.
Mayberrys.com probably has a much better price (including shipping) than a local dealer.
Fred.
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