A fridge needs a power source. An RV fridge can run on electric or LP. The residential fridge only runs on electricity.
Unless you have a really long extension cord, you need a power source on the road and when you’re camped. Even if you have hookups at night, you still need power in the road:
- Lots of DC power in your batteries
- An inverter to run the fridge on AC
- Solar panels to recharge the batteries while you drive
It’s all possible, but not cheap.
We have 700w of solar, a nice big inverter, and four 6v batteries. This works well for us when we boondock, but I wouldn’t want to run a residential fridge all day when we need the juice at night.
We’ve been dry camping most of this week and I’ve only run the generator about 45 minutes so far to power my wife’s tea kettle, her hair dryer, and my coffee pot sometimes. This would be totally different if we were powering a fridge too.