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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Looks like not enough inverter for that microwave.
A typical "1000w" microwave wants 1500 watts input, and that 1500w will pull about 150 DC amps from the battery bank, needing say a set of #1 AWG wires between inverter and battery bank with the two wires being under ten feet long each.
You could run the MW for a few minutes on the two 6s if they are over 75% full, but you will want to double that to four 6s if you want to run the microwave with the batts as low as 50% SOC.
The battery voltage gets dragged down by the inverter running the microwave which is normal. the inverter will alarm and shut down at some low battery voltage. 11v for the alarm is common. So the idea is to get your MW job done before the alarm goes off. If the MW job is two minutes, you don't need as much battery as when the MW job is 10 minutes.
12s instead of 6s will help a little, but not change the story.
A typical "1000w" microwave wants 1500 watts input, and that 1500w will pull about 150 DC amps from the battery bank, needing say a set of #1 AWG wires between inverter and battery bank with the two wires being under ten feet long each.
You could run the MW for a few minutes on the two 6s if they are over 75% full, but you will want to double that to four 6s if you want to run the microwave with the batts as low as 50% SOC.
The battery voltage gets dragged down by the inverter running the microwave which is normal. the inverter will alarm and shut down at some low battery voltage. 11v for the alarm is common. So the idea is to get your MW job done before the alarm goes off. If the MW job is two minutes, you don't need as much battery as when the MW job is 10 minutes.
12s instead of 6s will help a little, but not change the story.
