I just realized that I mispoke in my original post, my apologies. I am not running the fridge on the inverter. Just the normal trailer circuit and the CONVERTER is what is showing the reduced battery level of 50 - 90 %. Based on the comments I think I will need to do some testing in the driveway prior to leaving to verify the amp draw of the system with the refrigerator on and the charge from the truck.
Jimcol,
I think you may be right I need to understand the actual draw better. I will pay closer attention to the battery meter I installed concerning voltages, etc. to get a better understanding. I can also manage the reefer better. It is cold for a lot of the drive so may be able to turn it off also.
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