Why won't 2000w inverter run 900w microwave?
I bought a 2000w Nature Power pure sine inverter from camping world. I had my local rv dealer install the inverter (and a power tongue jack) that I bought a CW. It was $200 in parts and $500 in ...
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We run our microwave from the inverter very rarely and for very short times; less than a minute. The batteries are 4 new 6V GS rated at 242 AH each for a total of 484AH. The cables from the batteries to the Xantrex Prosine 2.0 (2KW PSW) are 3/0 and less than three feet long.
When running the microwave at full power the battery voltage will drop to 12.0 after a very short while, drawing over 150 amps from the batteries. Since ours is a Panasonic Inverter microwave, using it on a lower power really means lower power and not full power being cycled on and off like all other microwave ovens do.
Our previous batteries were 4 group 24, at maybe 80 AH each, for 320 AH. Same connections. The microwave on full power would draw 170 Amps or more.
I suspect you have two problems: 1) Too much voltage drop between the batteries and the inverter, and 2) not enough battery. Really beefing up and seriously shortening the battery-inverter cables may help.
When running the microwave at full power the battery voltage will drop to 12.0 after a very short while, drawing over 150 amps from the batteries. Since ours is a Panasonic Inverter microwave, using it on a lower power really means lower power and not full power being cycled on and off like all other microwave ovens do.
Our previous batteries were 4 group 24, at maybe 80 AH each, for 320 AH. Same connections. The microwave on full power would draw 170 Amps or more.
I suspect you have two problems: 1) Too much voltage drop between the batteries and the inverter, and 2) not enough battery. Really beefing up and seriously shortening the battery-inverter cables may help.
