GridMatch
Topic

Home Backup Guides

Outage preparedness for houses and apartments — runtime in days, surge limits, and real appliance loads.

Not sure what size you need?

Estimate runtime for your devices with the free calculator.

Open runtime calculator
Home refrigerator and essentials during a power outage with a plug-in backup battery nearbyBuyer's Guides

How Big a Home Backup Battery Do You Actually Need for an Outage?

Skip the marketing math. Size a plug-in home backup battery around what you need to keep running — measured in days, not hours — and why surge rating matters more than the number on the box.

7 min read