Can a car battery provide enough juice to power a common household outlet? Can it be wired to do that?
by 
Adz3r0
ANSWERS: 1
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The problem is that a typical car battery provides 12 VDC and a household outlet provides 120 VAC 60 hertz. You can actually power household goods from a car battery, but you need a DC-to-AC power inverter/transformer. The second issue if that if you put a full 15 amp load on a household outlet, that's 1,800 watts (15A x 120V). A typical small car battery will supply 45 Amp Hours at 12 volts, which would translate VERY roughly to 540 watts. So powering a loaded household outlet would fully discharge a car battery in very short order. You would need to have the car running so its alternator recharges the battery continually.
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