Mini Fridge Runtime on 200Ah Battery
A 200Ah battery provides 2+ days of mini fridge runtime - enough for most extended power outages. This setup is popular for RV living and off-grid cabins where reliable refrigeration is essential.
Typical Runtime
48hrs
Efficient/Low Power
64hrs
Worst Case
32hrs
Battery Energy
1920Wh usable
- ✓Extended power outage preparedness (2-3 days)
- ✓Full-time RV or van life
- ✓Off-grid cabin with solar
- ✓Running fridge plus small additional loads
- !Heavier system - less portable
- !Still limited for running multiple large appliances
- ↑You also need to run a freezer
- ↑You want a week of backup without solar
- ↑You are building a whole-house backup system
- ↓You only need 24-hour backup
- ↓Portability is a priority
Minimum Solar
300W
Ideal Solar
400W
Recharge Time
~5 hrs
400W solar ensures reliable daily recharge even in imperfect conditions.
Tips for Mini Fridge on 200Ah
- •At 200Ah with 400W solar, you can run a mini fridge indefinitely
- •Add a small chest freezer too - both together use about 100W average
- •Keep battery in climate-controlled space for best performance
- •Monitor fridge temp - adjust thermostat to optimize power use
- •A kill-a-watt meter shows actual consumption of your specific fridge
Frequently Asked Questions
Is 200Ah enough for a fridge and other devices?
Yes, with planning. A mini fridge uses about 50W average. You have 1,920Wh usable - plenty for fridge plus phone charging, lights, and small devices.
Can I run mini fridge and CPAP on 200Ah?
Yes, comfortably. Together they use about 80W average. Expect 20+ hours of runtime, or indefinite with adequate solar (400W+).
How long will 200Ah run my fridge during a hurricane outage?
About 48 hours typically. Keep the door closed, and the fridge will maintain temperature for several hours even after battery depletes.