Forum Discussion

rshrimp's avatar
rshrimp
Explorer
Jun 21, 2015

Switching to residential style fridge questions.

I would like to switch out my fridge to a compressor style 110v electric fridge. I have a 2500 watt invertor, 4-6volt batteries and 300 watts of solar as well as a 2500 watt generator for backup.

I am having trouble finding out how many watts these refrigerators draw and how much do they run (50% of the time or 80%) I know that will vary but looking for real life examples of what I can expect.
So how has a electrical monitor and a compressor style fridge?

Thanks in advance

11 Replies

Show More
  • KD4UPL's avatar
    KD4UPL
    Explorer II
    Jun 21, 2015
    I design and build solar and back-up power systems for a living. I have measured the power usage of many refrigerators. They all seem to be somewhere around 1.5 kWh per day in usage. Some more, some less, but that's about average.
    1,500 watt/hr / .8 inverter efficiency = 1,875 w/h / 12v = 156.25 Ah per day.

About Technical Issues

Having RV issues? Connect with others who have been in your shoes.24,362 PostsLatest Activity: Mar 02, 2026