Question: I have a small refrigerator in my RV that only runs on electricity with a regular plug. So it only runs when the RV is plugged in at a campsite. How can I get the proper inverter to run it while we are on the road?
Answer: To begin we suggest you look at the power requirements for your specific refrigerator to determine the size inverter you will need. Additionally, you need to consider your battery power.
Start by reading the label on the refrigerator and find out how many watts it draws. This will give you the basis for sizing the proper inverter.
Note that the inverter is only part of the equation. You also need to consider how much battery power you will need and for how long. If you need to significantly upgrade your batteries, you may also need to upgrade your charging system. Batteries are heavy and bulky, so consider where will they fit and the impact to your weight distribution.
You may find that it will not be practical to run your refrigerator off an inverter. On my coach my inverter does not provide power to the refrigerator and I have to run it on propane when not connected to power.
Here is a list of approximate wattage draws for common appliances (be careful this is only an illustration and may not be applicable to your specific application)
A/C 1600 – 2500 Watts
Microwave 1200-2000 Watts
PC Desk top 400 Watts
TV 30-300 Watts (depends on size, B&W or Color)
VCR 40-60 Watts
Refrigerator/Freezer 400-1200 Watts
Toaster/Toaster Oven 800-1500 Watts
Hair Dryer 900-1500 Watts
Here are some other posts related to refrigerators: