Fortress Power's mission is to provide compact, user-friendly and affordable lithium energy storage solutions using the latest technology for all homes and businesses. Fortress Power’s smart and innovative energy storage units can be easily integrated with new and existing PV systems. They work by storing clean energy for when you need it most – it’s that simple


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Fortress eFlex 5.4KWh
BDF80055
Price: $3,910.00
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Fortress Item #: BDF80055 -

The Fortress Power eFlex is a 5.4 kWh scalable energy storage solution based on safe and energy dense prismatic Lithium Iron Phosphate cells. The digital processor Battery Management System (BMS) includes high amperage contactor disconnects and advanced closed loop inverter communication, as well as individual cell voltage monitoring, temperature monitoring, and cell balancing to maximize reliability and longevity. Canbus, modbus, and wifi communication enable internet-of-things ...

Fortress eVault Max 18.5KWh
BDF80185
Price: $13,800.00
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Fortress Item #: BDF80185 -

Fortress Power proudly services homes, businesses, utilities, telecom and transportation companies worldwide. Our Pennsylvania-based team’s passion for clean energy storage has earned us a place among the world’s top energy storage battery manufacturers. DATA SHEET

Fortress FlexRack
BDF80190
Price: $1,840.00
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Fortress Item #: BDF80190 -

Expand your energy storage with the new Fortress Power FlexRack! This iron enclosure stores up to 4 eFlex 5.4kWh batteries. The FlexRack paired with multiple eFlex batteries can build a 48V UPS server rack or provide storage capacity to home solar arrays. The FlexRack includes intergrated busbars, wheels, and a DIN rail heater mount. This enclosure can be free-standing or pad mounted.DATA SHEET