How Long Will AC Power Inverter Run Off 12 Volt Battery
Question:
Making a home power wall. How long will a 1500 watt 120 v inverter run off a 12.8v 200 amp hour battery?
asked by: Patrick L
Expert Reply:
A 1500 watt AC Power Inverter will run for approximately 16 hours based on the 200 amp hour rating of your 12 volt battery.
1500 watts of AC power at 120 volts is converted to 150 watts of DC power at 12 volts. Amps = watts ÷ volts, so 150 watts divided by 12 volts equals 12.5 amps. We then divide the 200 (amp hours) by the 12.5 amps to get the 16 hours.
We don't carry any 1500 watt AC Power Inverters, but the # WC3720 1000 Watt AC Power Inverter powered off the same 12 volt battery would run for approximately 24 hours.
I've included an FAQ at the bottom of the page that covers power consumption and requirements in detail.
