Buying guide
Backup power for a fridge and router
A refrigerator and Wi-Fi router are one of the most common outage loads. The right battery depends on running watts, startup surge, outage length, and how much safety margin you want.
Quick sizing rule
Estimate the combined running load, multiply by target hours, then add margin for inverter losses and real-world cycling. A sample 150W fridge plus 20W router for 12 hours is about 2,040Wh before margin.
What to compare
- Continuous output and surge handling for the refrigerator compressor.
- Usable watt-hours, not just marketing capacity.
- LFP battery chemistry for long cycle life.
- Solar input if you need multi-day resilience.
- Weight and noise if the unit will live in an apartment or kitchen.
Best-fit prompts
Ask Backup Power Finder: portable power station for a fridge and router during a 12 hour outage under $1500.