I think we need more info on what you have. If you have a 120volt ac electric only residential refrigerator, and it was on, that battery life may not be too long. Like has been said, be sure your truck is charging it.
I was talking to a Keystone salesman 2 days ago. We were in a Montana with a residential refrig. I asked how long it would run off the battery, he said about 18 hours.
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2018 Ram 3500 Laramie CC DRW LWB 4X4 Cummins Aisin 3.73
Reese Goosebox 20K
2018 Heartland Landmark 365 Oshkosh
2008 Bigfoot 25C9.4 LB Cabover
2023 CanAm Defender SXS
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