Fortress Power FlexTower All-in-One Energy Storage System (INVERTER ENCLOSURE ONLY)

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Fortress Power FlexTower All-in-One Energy Storage System (ENCLOSURE ONLY)

The FlexTower is an all-in-one energy storage system. Built on the foundation of the DuraRack battery cabinet, the FlexTower combines the battery, charge controller, and inverter into a single unit with an LCD control panel, and remote monitoring capability. The FlexTower is easy to install and carries IP65/NEMA3R ratings for indoor or outdoor use.

  • Operation Temperature Range: 32°F ~ 114°F (0°C ~ 45°C)
  • IP Rating: IP65/NEMA 3R
  • Enclosure Weight: 265lbs (120kg)
  • Dimension (W x H x D): 29.3 x 79.5 x 17.7in (744 x 2019 x 449mm)
  • Cooling: Fan Cooling
  • Warranty: 10 years (8000 Cycles @ 80% DoD)
  • Communication: Modbus, RS485, WIFI
  • Certificates: UL 1741, UL 1741-SA, UL 1973, UL 9540, UL 9540 (A)
  • Side Knockouts: 1.5” (3), 1.25” (1), 0.75” (4)
All-in-One Solution:
  • Inverter, charge controller, LCD Control Panel, Battery and remote monitoring app integrated in one unit
  • Supports Off-grid, Back-up, Zero Export, Time-of-Use, Demand Response, Peak Shaving, and Virtual Power Plant
Flexible & Easy Install:
  • IP65 water and dust proof for indoor & outdoor installation. NEMA3R
  • AC or DC couple to existing or new PV arrays
  • Optional Rapid Shutdown Button Included
  • Side knockouts sized for solar, grid, and generator wiring
Highest Reliability for Maximal Protection:
  • 8000+ cycle life with tier 1 Automotive Lithium Iron Phosphate (LFP) battery
  • Easily scaled to meet all large residential and commercial electricity needs
Whole Home Backup with 200A Grid Pass-through
  • 200A Pass-through eliminates backup panel requirement
  • Saves time on inverter wiring
  • Includes battery cables and combiner for additional savings
Highest Roundtrip Efficiency to Maximize Your Solar Investment
  • >98% Battery Efficiency
  • 5% CEC-Rated Inverter Efficiency
  • Compatible with Din-Rail Heaters to maximize lifecycles in cold climates
More Information
Width 29.3
Depth 17.7
Height 79.5
Condition New
Country of Manufacture U.S.A.
Brand Fortress Power
Warranty Life 10
Rechargeable No
Certifications UL 1741, UL 1741 SA, UL 1973, UL 9540, UL 9540A
Knockout Size 1.5” (3), 1.25” (1), 0.75” (4)
Cooling Fan Cooling
Communication Modbus, RS485, WIFI
Watts W
Warranty 3 Year Manufacturer Warranty
Special Notes Before purchasing, please be advised that it is recommended to replace your original battery pack with that of the same chemistry. This battery may require a skilled installer or special tools to replace. For skilled end users only. This battery may require soldering and special tools to replace. For skilled end users only. Extended battery packs may require an extra cover that will accommodate its size.
Voltage V
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