Fortress Power DuraRack Battery Rack for eFlex 5.4 kWh
Expandable Storage. Rugged Protection. Clean Installation.
The Fortress Power DuraRack is a weather-resistant, scalable battery enclosure designed to house and protect your eFlex 5.4kWh lithium batteries. Built with IP65-rated materials for indoor or outdoor installations, the DuraRack provides secure, professional-grade storage for residential and commercial energy systems.
Each enclosure holds up to 4 eFlex batteries and the system can expand to 4 total enclosures, providing up to 81kWh of total storage capacity. Pre-wired with integrated busbars and battery cables, and compatible with Fortress Power’s optional Heat Mat Kit, the DuraRack ensures reliable operation in both hot and cold climates.
Key Features
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Indoor/Outdoor Ready Protection:
- Durable steel enclosure
- IP65-rated for rain, dust, and snow exposure
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Integrated Busbars & Pre-Wired Cabling:
- Built-in busbars and battery cables included
- Reduces installation time and ensures a clean setup
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Cold Weather Compatible:
- Supports optional DIN rail-mounted Heat Mat Kit
- Keeps batteries within safe operating temperatures in freezing environments
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Passive Cooling Design:
- Vented airflow system
- Helps maintain optimal battery temperature in warm climates
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Scalable Storage Architecture:
- Supports up to 4 × eFlex batteries per enclosure
- Scale up to 4 racks (up to 15 batteries total)
- Up to 81kWh total system capacity
-
Secure, Professional Appearance:
- Tamper-resistant enclosure
- Clean, low-profile design suitable for residential or commercial installations
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Flexible Mounting Options:
- Freestanding cabinet installation
- Pad-mounted configuration
Applications
- Residential Energy Storage
- Light Commercial & Industrial Systems
- Indoor Utility Rooms or Closets
- Outdoor Patio or Wall Installations
- Off-Grid Projects in Harsh Climates
What’s Included
- 1 × Fortress Power DuraRack Enclosure
- Pre-installed busbars and battery interconnect cables
- Mounting hardware and side knockouts for AC/DC wiring
- DIN Rail for optional heater (Heat Mat Kit sold separately)
- User Guide
Holds up to 4 Fortress Power eFlex 5.4kWh batteries per enclosure. Expand up to 4 units for a maximum of 15 batteries.
Specification Sheets:
Fortress Power DuraRack Specifications (PDF)
Manuals:
Fortress Power DuraRack Installation Guide & Owner Manual (PDF)
