Not sure what a 165 is as there may be letters or more in the name. If you have a window AC a heavy drop cord is enough for testing the AC. For lights and keeping up the battery a drop cord is fine. You can purchase a simple voltage tester that plugs in for a a few bucks. A multimeter is a must for every camper. I also have a 12 volt plug in meter with usb outlets that I have that works great to keep my eye on the battery condition.
Use the gold bar search function above to get lots of help and don't forget make and model if you have a question about a specific item like a fridge , water pump, etc. Have fun and see you down the road.
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2017 SLX 195RB
2021 Jeep Grand Cherokee Summit L 5.7L V8
Andersen WDH hitch, Renogy 100 AH Lithium &
200 Watts solar panels from Renogy
Prev. '14 Jeep Grand Cherokee Overland, gas 3.6 V6
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