Partial vs. Whole Home Battery Backup: What’s the Difference?

When the power goes out, a home battery system can keep your lights on and essential appliances running. But the type of backup you choose—partial or whole home—makes a big difference.

Partial home backup is designed to power only your most important circuits. Think refrigerators, Wi-Fi routers, medical devices, and a few outlets. This option uses a smaller battery and costs less, making it a great choice if you simply want peace of mind during short outages.

Whole home backup, on the other hand, covers your entire electrical panel. From air conditioning to laundry, everything keeps running as if the grid never went down. This option requires a larger battery capacity (and often multiple units), but it offers complete comfort and convenience during extended outages.

Choosing the right solution depends on your budget, energy needs, and how much backup security you want.