Forum Discussion
MrWizard
Feb 24, 2016Moderator
If the fridge and water header are on l.p.
You may have bad batteries
But those 12vdc thermo electric coolers are big power hogs and should be used in a car with the engine running
They are not intended to be run off batteries while camping
Still only 2 hours would only be about 16 amp hours cooler drain
Add you entertainment power use and lighting to that
And a couple of good batteries should last longer
Unless you are using more items on the inverter than you should
Like fridge and water heater
You may have bad batteries
But those 12vdc thermo electric coolers are big power hogs and should be used in a car with the engine running
They are not intended to be run off batteries while camping
Still only 2 hours would only be about 16 amp hours cooler drain
Add you entertainment power use and lighting to that
And a couple of good batteries should last longer
Unless you are using more items on the inverter than you should
Like fridge and water heater
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