Fortress Power EVault MAX 18.5 kWh (48v 360Ah)


SKU: Fortress eVault 18.5




Fortress Power’s engineers are on a mission to provide you with the most advanced Lithium Iron Phosphate Battery available. Not only is the new fortress eVault 18.5 kWh battery safe, long-lasting and affordable, but is also equipped with a brand new LCD screen that displays voltage, current, state of charge, and power output and operating status. The built-in smart battery management system integrates multilevel safety concepts for excellent performance.

Latest Technology: We use the safest, environmentally friendly prismatic Lithium Iron Phosphate cells.

Lowest Cost per cycle: Competitively priced and easy to install with >98% round-trip efficiency.

Flexible and Scalable: Expandable from 18.5 kWh to 222 kWh for both residential and commercial buildings

Long Lasting: 10-year warranty; up to 6,000+ cycles

Smart and Advanced: The smart relay-based Battery Management System, supports closed-loop communication with various hybrid inverters for best performance.


  • Total Energy: 18.5 kWh
  • Nominal Voltage: 51.2(48)V
  • Voltage Range: 45-58.4 V
  • Recommended Charge Current: 100 Amp
  • Max. Charge Current(Continuous): 170 Amp
  • Max. Discharge Current(Continuous): 180 Amp
  • Recommend Storage temperature: 50 to 95 F
  • Charge temperature: 32 to 113 F
  • Capacity: 360 Amp-hour
  • Dimension(H x W x D): 38.8″ x 19.2″ x 21.3″
  • Weight: 476 lbs


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