Youtube Facebook-f Instagram Linkedin
Fortress-Power-Logo-Filled-Medium

NEW! 30 Year Extended Warranty for Residential Customers! Click for Details!

FlexTower | All-in-One Storage and Inverter Solution

A compact, pre-wired enclosure that houses both battery and inverter — simplifying installation and saving space for residential and light commercial projects.

FlexTower Full System Enclosure

All-In-One Enclosure for Your Inverter and Battery

The FlexTower is for your integrated 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.

Applications

Residential

Commercial + Industrial

FEATURES

  • All-in-One Enclosure

    The FlexTower combines everything you need in one sleek enclosure — including a battery, hybrid inverter, charge controller, LCD interface, and remote monitoring app. It supports multiple applications like off-grid power, backup, zero export, TOU optimization, demand response, and VPP participation.

  • Fast, Flexible Installation

    Rated IP65 and NEMA 3R, the FlexTower is built for indoor or outdoor use and includes pre-cut side knockouts for clean AC, DC, and generator wiring. It supports both AC and DC coupling, and includes an optional Rapid Shutdown button to simplify compliance and speed up installs.

  • Whole-Home Backup Made Simple

    A built-in 200A grid pass-through eliminates the need for a backup subpanel, reducing hardware costs and installation time. Battery cables and an integrated combiner are also included for maximum convenience.

  • Maximize Your Solar Investment

    With >98% roundtrip battery efficiency and CEC-rated inverter performance, FlexTower ensures you get the most out of every kilowatt-hour your solar array produces. Optional DIN-rail heaters can be added to maintain battery health in cold climates.

PRODUCT INFORMATION

FlexTower Specifications
Operation Temperature Range 32°F ~ 114°F (0°C ~ 45°C)
IP Rating IP65/NEMA 3R
Enclosure Weight 265lbs (120kg)
Dimensions [W x H x D] 29.2in x 83.78in x 17.8in (742mm x 2128mm x 452mm)
Cooling Fan Cooling
Warranty 3 Years
Communication CAN, Modbus, RS485, WIFI
Certifications UL 1741, UL 1973, UL 9540, UL 9540 (A)
Side Knockouts Left 2”(3), 1.5”(1), 1.25”(1),1”(1) / Right 2”(3), 1.5”(1), 1”(1)

Manuals

Certifications

Data Sheets

© 2025 Fortress Power. All Rights Reserved.