Short answer is YES.  Most likely your RV is equipped with an RV refrigerator. RV refrigerators are absorption refrigerators and operate on household current or propane. When the camper is not plugged into an AC power source, the refrigerator uses heat from a propane-fueled flame to complete the cooling process. Some RVs now offer residential refrigerators like those you have in your home. These refrigerators use the RV’s battery power supply, inverted into AC power, to operate the refrigerator compressor and supply cooling when not plugged into an external power source.