If you're talking about 400 ah at 12 volts, then you would have ~~ 9 hours until the batteries are completely exhausted; as in dead.

If you want to use them a second or third time or more, then figure about 4-1/2 hours.

If you're talking about 400 ah at 24 volts, then double the above estimates.

If you're talking about 400 ah at 48 volts, then double it again.

bp
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On 12/2/2015 10:00 AM, TJ Trout wrote:

How long will 500w load last on 400ah?


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