Forum Discussion
wa8yxm
Aug 07, 2023Explorer III
If you find yourself "Off the grid" as I did last Thu/Fri for 13 hours that 12 volt draws 30 t0 90 watts the 120 volt a whomping 720.. WOW.
I've used those high effiency 12 volt compressor jobs. In fact though the one I have now runs on a converter..... part way through that 13 hour blackout while I was "Concerned" it was going to take too long (8-12 is the limit) I hooked up a 12 amp hour LiFePO4 battery to a 300 watt MSW inverter and powered it up. Still below freezing (Just) per the display and quickly cooled off.
The main Fridge (A smaller residential one) Got plugged into the 2KW inverter with 1,500 watt hours of battery behind it.. All food saved.
But had it been longer.. I'd have needed recharges.
So the 12 volt unit.... Your batteries will last longer if you need to live off 'em over night.
I've used those high effiency 12 volt compressor jobs. In fact though the one I have now runs on a converter..... part way through that 13 hour blackout while I was "Concerned" it was going to take too long (8-12 is the limit) I hooked up a 12 amp hour LiFePO4 battery to a 300 watt MSW inverter and powered it up. Still below freezing (Just) per the display and quickly cooled off.
The main Fridge (A smaller residential one) Got plugged into the 2KW inverter with 1,500 watt hours of battery behind it.. All food saved.
But had it been longer.. I'd have needed recharges.
So the 12 volt unit.... Your batteries will last longer if you need to live off 'em over night.
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