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Old 10-22-2016, 10:35 AM   #41
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"Does it make sense to charge a battery to charge another battery????"

Maybe I'm doing it wrong. Coming from a tenting background, I use the small power bricks to charge the small electric devices like phones, iPads, speakers, etc. When the brick runs down, I plug it into the camper to charge back up. If the two camper batteries get low, I plug back into the truck to add more more charge.

Despite that I am fully LED in the camper, I still like to use the battery-powered lanterns and string lights - I'm still adapting to the harsh glare of the house lights.
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Old 10-22-2016, 11:46 AM   #42
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Originally Posted by seagrace View Post
Despite that I am fully LED in the camper, I still like to use the battery-powered lanterns and string lights ...
We still do the same ... when boondocking, we jealously hoard every last milli-amp-hour of the batteries for the fridge and furnace.

Regarding the OP ...
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Originally Posted by jjlavin View Post
... we are doing a tailgate and I would prefer not to use the generator out of consideration of the people around us. My goal is to get the Crock-Pot cooking for 6ish hours off the batteries - I would use an inverter off the cigarette lighter adapter. I just checking the power that my Crock-Pot consumes. 2.25 amps, 278 watts.

My question - will my RV batteries be able to sustain that kind of power for 6 hours?
That is a huge draw on the batteries, as all the math preceeding this point makes.

Here is a "trick" we used successfully ... may or may not work in your instance ...

We prepared a crock-pot and used an inverter drawing off the TV electrical system. Since it was a several hour drive, we were able to leverage that cooking time and show up with it steamy hot.

Realise that this doesn't so much help if you are parked for many hours before serving time, but it is a way to leverage the power available while the wheels (engine) are turning.

Good Luck
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Old 10-22-2016, 12:37 PM   #43
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I once knew of someone who would run their generator while they were driving just so they could plug the crock pot in and have dinner ready when they got there....
That will work too. I just use an inverter. The engine alternator on most motor homes is oversized and will keep up just fine.

Coleman used to make an LP fired one, but I think it has been discontinued.

Once I am set up in camp I use charcoal and cast iron dutch ovens. They do have a learning curve, but once mastered they can be used to cook just about anything from slow roast to full boil.

Aaron
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Old 10-23-2016, 11:03 AM   #44
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Cast iron on propane stove.


That sir is no run of the mill cast iron!
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