Home Battery Backup Calculator

Discover what battery capacity you need for your essential loads during an outage.

Select Essential Devices & Input Usage

Refrigerator (Watts)

Fridge Hours/Day

Lighting (Total Watts)

Lighting Hours/Day

TV & Entertainment (Watts)

TV Hours/Day

Other Load (Watts)

Other Load Hours/Day

- Total Daily Energy (kWh)

- Recommended Battery (kWh)

- Min Inverter Cap. (kW)