I have a couple of deep cycle lead acid 12V batteries (Kirkland Brand), 125 amp-hours each.
I want to run a 120 volt dryer-blower off a 2000 watt inverter for 20 minutes.
I calculate 2000 watts/120 volts = 16.6 amps on AC side,
16.6 amps X 120/12 volts = 166 amps on the DC side.
166 amps X 20 minutes = 55 amp-hours.
Add efficiency losses and we are still under 75 amp-hours.
So, the capacity is there, even with just one battery (and I have 2).
Question: If I am drawing that much power from the battery, are there any problems or concerns? Overheating? Safety?
I realize that this will shorten the battery life somewhat, but I only expect to do this a few times each year.