Fortress Power

Expand your energy storage with the Fortress Power DuraRack. This iron enclosure stores up to 4 eFlex 5.4kWh batteries, and is expandable up to 4 u...

 Latest Lithium Iron Phosphate technology (UL 1973 and UL9540 certified)   Expandable from 18.5 kWh to 370 kWh for both residential and commercia...

   Rugged, Long-lasting, Daily Use Battery    Safe Lithium Iron Phosphate Technology (LifeP04)    98% Round Trip Efficiency    Flexible Mount...

The FlexTower is an all-in-one energy storage system. Built on the foundation of the DuraRack battery cabinet, the FlexTower combines the battery, ...

Fortress Power Batteries Just Got Smarter The Fortress Power Guardian is a gateway device that connects Fortress Power Batteries to the clou...