Inverter ?

wanderingbob wrote:
Assuming that I have the battery power would a 3,000 watt inverter run a rooftop 13,500 air for an hour or so ? I now have 4 six volts hooked up as 12 volts . I would only need air for an hour or so each day . Nothing else on batteries except normal pumps and lites .

As someone said 13.5k A/C draws around 13 amps of 120 vac. That is around 130 amps of 12 vdc. Don’t know what starting amps is but a soft start would help. Strangly a 15K AC.. about the same amount (I was surprised when I upgraded my Carrier (That's what I had 13.5K and that's what it drew 13.5 amps) to a 15K (Carrier is out of the business so it was a different brand) it also drew 13.5 Running bit more on the start)

4 GC-2s is about 440 Amp hours at the 20 hour rate about 200 usable by the inverter (I suspect it has a cut off).. One hour would be about 135 amp-hours But wait there another factor Peukert's law Basically it says "The faster you draw down a rechargable battery.. The Faster still it runs down"

That is at that discharge rate you wont get anywhere near the full capacity of the battery. And no.. I do not know how bad it will be.