Battery recommendations for 1500W inverter
Does anyone have recommendations for a 12V battery setup that can power a 1500W inverter? The background: my travel trailer is currently powered by two 6V golf cart batteries (Duracell SLIGC110 215...
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I have measured several times that a typical microwave will pull more amps from a PSW inverter than from a MSW inverter, but take longer to heat up something. Where PSW wants 150a, MSW wants 125a is typical
I happen to have the ingredients for a fun bench test in the garage now, with two full 100AH marine/rv 27s in parallel, a MSW 3000w inverter, and "1000w" microwave.
I unplugged the float charger on the two batts, so their voltage was dropping slowly from 13.4 and turned on the inverter, plugged in the microwave with a cup of water in it, set the time for two minutes, and fired her up.
It ran with battery voltage falling fast till 11v and the inverter alarm went off, but it kept running. Can go to 10.5 it says. 1.2Kw at first but that fell too. It kept running with voltage about 10.8 and watts about 1Kw at the end when the two minutes was up.
Voltage bounced back to 12.5 and 12.6 after that, when I plugged the float charger back in.
Short, fat wiring of course.
I happen to have the ingredients for a fun bench test in the garage now, with two full 100AH marine/rv 27s in parallel, a MSW 3000w inverter, and "1000w" microwave.
I unplugged the float charger on the two batts, so their voltage was dropping slowly from 13.4 and turned on the inverter, plugged in the microwave with a cup of water in it, set the time for two minutes, and fired her up.
It ran with battery voltage falling fast till 11v and the inverter alarm went off, but it kept running. Can go to 10.5 it says. 1.2Kw at first but that fell too. It kept running with voltage about 10.8 and watts about 1Kw at the end when the two minutes was up.
Voltage bounced back to 12.5 and 12.6 after that, when I plugged the float charger back in.
Short, fat wiring of course.
