Forum Discussion
dougrainer
Aug 28, 2016Nomad
3 way refers. The 12 volt side is just to MAINTAIN the existing temp in a refer already at cooled temp. It is ONLY for operation while in transit. The Truck/Car Alternator will supply enough amps/volts to the RV battery and keep the refer operational while driving as long as the charge line is connected to the trailer AND the battery is charged and in good shape. Running on LP and 12 volt will not harm anything in the short term. Doug
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