Support Articles

Based on the assumption that an average household uses 30 kWh each day, a 15 kWh home battery would last an average of 12 hours. The actual battery backup hour depends on appliance consumption.

In general, the larger storage capacity a battery system has, the longer backup a user can expect. The FranklinWH aPower 2 battery provides a single battery capacity of 15kWh and is scalable up to 15 units per aGate for a total of 225 kWh. Storage capacities at this range often is large enough to keep appliances running for multiple days when combined with solar production.