tonyiiiafl wrote:Hoping the battery bank will keep refrigerator and whatever lights (ALL LED now) we use going all night, along with a couple of air circulating fans.
If that's all you're running, you should have plenty.
4 GC batteries should get you about 410 amp-hours. The LED lights draw next to nothing, so unless you have them all on and leave them all on all night, it's not even worth calculating.
For the fridge, it will depend a bit on the outside temperature but a full size Norcold draws about 12 amps on D.C. If it was running continuously, that would be about 33 hours on your batteries. If you're not constantly opening the fridge then it should not be running constantly. Overnight, from say 10PM till 8AM, it would probably drain less than 60 amp-hours out of your 410 amp-hour supply.
You can even make it run less though if, while on generator or when the engines are running, you set the fridge thermostat to 'max', then set back to normal temp before you go to bed.
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