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Re: DC to AC Inverter........
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Posted by jdemaris on December 08, 2005 at 17:12:33 from (66.218.19.221):
In Reply to: DC to AC Inverter........ posted by jmh on December 08, 2005 at 15:12:56:
Just to give you some idea - the cheapest 12 volt deep-cycle battery that Walmart sells for $50 is a 110 amphour battery. That means it can supply one amp for 110 hours at 12 volts. The inverter will also use current, i.e. the inversion is not 100 % efficient. So, a rough estimate with the 110 AH deep-cycle battery to run your lights that draw 288 watts (2.4 amps at 120 volts) plus the loss will be about a 25 amp draw at 12 volts which can be done for 4 1/2 hours. The time will be less with a standard automotive battery - I'd guess about 2 1/2 hours.
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