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<p>[QUOTE=&quot;sail, post: 126481, member: 2641&quot;]Compact microwave .7 cu. ft. is 1200 watt. So if you will not take in consideration loses in your inverter current of 1200/12=100 amps will be necessary from your battery to run that microwave. And if you add loses in inverter and so on, (no electrical guy here, but that sure over 20%) you’ll end up with min current of 120 amps. from your batteries. So let say you baking potato that would take 4 minutes (=.07 hours). You’ll use 120x.07=8.4 amp.hours from your batteries, which is not a big deal. However, I’d guess current of 120 amps would not help those batteries to survive. On another hand you won’t be paying for those batteries, so …. Also your wiring should be able to handle that current. Frige wont take that much power, but probably 1/10 of it or less. There are 12V friges installed in small motor homes, boats and so, that would be better than 110V AC through the inverter.[/QUOTE]</p><p><br /></p>

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