17 hours till battery depleted. not good for the battery... fine for the fridge. if you took it down to only 50% you'd have about 8 hours useable battery capacity. I'm guessing the two group 27 batteries recommended in the link provided by Mr Pachu are therefore around 100 AH total at 12 volts give or take. 8 hours is a long haul for one day of travel. If you pull in and plug in overnight, your battery will be fine the next morning... ready for another 8 hour run, if that is the way you roll.
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2017 RAM 3500 Laramie CCLB Dually CTD Aisin, OEM auto level rear air-ride, B&W hitch
2020 3813MS Legacy Cobalt FBP, MORryde 8K IS & pinbox, PI EMS,DIY mods by in-house "craftsman", RV security system Mk1 Beagle Alerter
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