12v inverter draw on batteries with microwave
If I get a 2000w inverter for my MH and use my 1100w microwave, what will be the draw off the house batteries? Using Ohm's Law I calculate about 9 amps draw at 120v. Then converting from 120v to 12...
Forum Discussion
DAS26miles wrote:
I am thinking about the times we need to heat or cook something and it's beyond generator hours. What would happen if I used the inverter and started up the MH engine? Would the alternators charging offset the draw from the inverter?
If it were me, I would light a burner on the stovetop (or, if more suitable, fire up the conventional propane oven—but not everyone has a "real" oven in their RV these days).
The alternator will offset some of the draw of the inverter, but not all. Alternator output is pretty limited at idle and increases with engine speed. Besides, starting the main engine so you don't run the generator during quiet hours is kind of missing the point of the rules IMHO, even given that the main exhaust system is usually more effective at muffling the noise than the generator's system is.
