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Fortress-Power-DuraRack-eFlex_1 Fortress Power | DuraRack + eFlex $13,375.00
fortress power|SKU:7825460987

Fortress Power | DuraRack

Secure Your Energy Storage with a Built-to-Last Enclosure

Elevate your energy storage with the Fortress Power DuraRack, a premium iron enclosure designed to house up to four eFlex 5.4kWh batteries for seamless, scalable power. Built with integrated busbars and a DIN rail heater mount, this IP65-rated rack offers unparalleled protection and flexibility for both indoor and outdoor installations. Whether free-standing or pad-mounted, it delivers the robust foundation your off-grid or backup system demands.

Restaurant-grade performance — sear at 1,000°F+ with infrared burners
304 stainless steel construction — rust-resistant, built to last decades
Ships fully assembled — wheel it out, fire it up same day
10-year warranty standard — industry-leading coverage on all burners

$1,535.95

Out of stock

Fortress-Power-DuraRack
Fortress Power | DuraRack
$1,535.95

Secure Your Energy Storage with a Built-to-Last Enclosure

The Fortress Power DuraRack is a vetted iron enclosure designed to house up to four eFlex 5.4kWh batteries in a single unit. When you are ready to scale, expand up to four DuraRacks for a total of 15 batteries and 81KWh of capacity. Every detail—from integrated busbars and battery cables to a DIN rail heater mount—reflects the craftsmanship required for serious off-grid builds. Rated IP65 for water and dust resistance, it installs indoors or outdoors, free-standing or pad mounted. Finance this investment with affordable monthly payments. Ships free.

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IP65 Weather Sealed
Scales to 81KWh
Indoor & Outdoor Safe
Integrated Busbars
4
eFlex Batteries Per Rack
81
KWh Max Expansion
IP65
Water & Dust Rating
Fortress-Power-DuraRack

Feature. . This ensures long-lasting durability and consistent performance in demanding conditions. Professional-grade materials and expert engineering come together to deliver a product you can rely on day after day, job after job. Every detail has been carefully considered to maximize your satisfaction and minimize downtime.

Fortress-Power-DuraRack-2

Feature. . This ensures long-lasting durability and consistent performance in demanding conditions. Professional-grade materials and expert engineering come together to deliver a product you can rely on day after day, job after job. Every detail has been carefully considered to maximize your satisfaction and minimize downtime.

Fortress-Power-DuraRack-3

Feature. . This ensures long-lasting durability and consistent performance in demanding conditions. Professional-grade materials and expert engineering come together to deliver a product you can rely on day after day, job after job. Every detail has been carefully considered to maximize your satisfaction and minimize downtime.

Compatibility Check

Confirm the DuraRack aligns with your battery setup and install site before ordering.

  • Compatible with Fortress Power eFlex 5.4kWh batteries only
  • Requires a flat, level surface for free-standing or pad-mounted install
  • DIN rail thermostat recommended for installation climates below 32°F

Built For

The DuraRack adapts to how you live off-grid.

Remote Cabins & Homesteads
Whole-Home Solar Backup
Modular System Expansion

Full specifications

At a glance

Dimensions
See product page
Surface
Iron
Warranty
See product page
Full specifications12 data points across 4 categories

Dimensions

WidthSee product page
DepthSee product page
HeightSee product page
WeightSee product page

Power & Performance

Battery Capacity Per RackUp to 4 x eFlex 5.4kWh
Max Expansion4 units (15 eFlex batteries; 81KWh total)
CoolingPassive cooling vent

Materials

Enclosure MaterialIron
InclusionsIntegrated busbars, battery cables, DIN rail heater mount

Compliance & Warranty

IP RatingIP65 (water and dust resistant)
InstallationIndoor and outdoor, free-standing or pad mounted
WarrantySee product page

The Off Grid Vault Promise

Every product we carry earns its place on our shelf.

Ships FreeFree shipping on every order, no minimums, no fine print.
30-Day Hassle-Free ReturnsNot the right fit? Return it within 30 days, no runaround.
Vetted for Real-World UseWe only stock gear that passes our standards for build quality and field performance.
★★★★★
“Outstanding quality and performance. The Fortress exceeded my expectations in every way.”
F
First L.United States

Fortress Power | DuraRack – Scalable, Weather-Resistant Battery Enclosure

Elevate your energy storage system with the Fortress Power DuraRack, a premium iron enclosure engineered for seamless scalability and robust protection. Designed to house up to 4 eFlex 5.4kWh batteries per unit, the DuraRack expands to support up to 4 interconnected units—accommodating 15 eFlex batteries for a total of 81 kWh of storage. Whether you’re building a residential backup system or a commercial microgrid, this enclosure delivers the durability and flexibility you need. Built with integrated busbars and battery cables, it simplifies stacking and reduces installation complexity. Safe for both indoor and outdoor use, the DuraRack is the intelligent foundation for your growing power demands.

Key Features

  • IP65 Water and Dust Resistant – Certified for reliable operation in both indoor and outdoor environments, protecting your batteries from moisture and debris.
  • Integrated Busbars and Battery Cables – Pre-wired components enable quick, tool-free stacking of eFlex batteries, saving time and reducing wiring errors.
  • Expandable Up to 4 Units – Supports up to 15 eFlex batteries (81 kWh total capacity) for future-proof energy storage growth.
  • DIN Rail Heater Mount Ready – Easily add a thermostat-controlled heater for optimal performance in cold climates.
  • Passive Cooling Vent – Designed for warm climates, allowing natural airflow to maintain safe operating temperatures without active power consumption.
  • Flexible Installation – Can be free-standing or pad-mounted, adapting to your space and structural requirements.

Specifications

  • Model: Fortress Power DuraRack
  • Price: $1,535.95
  • Category: DuraRack
  • Material: Iron enclosure
  • Battery Capacity per Unit: Up to 4 eFlex 5.4kWh batteries
  • System Expansion: Up to 4 units (15 eFlex batteries; 81 kWh total)
  • Ingress Protection: IP65 (water and dust resistant)
  • Mounting Options: Free-standing or pad-mounted
  • Installation Environment: Indoor and outdoor
  • Included Components: Integrated busbars and battery cables
  • Climate Adaptability: DIN rail heater mount (cold climates); passive cooling vent (warm climates)

Why Choose Fortress Power | DuraRack

Fortress Power is a trusted leader in advanced energy storage solutions, and the DuraRack reflects that commitment to quality and innovation. Unlike generic enclosures, the DuraRack is purpose-built for eFlex batteries, ensuring perfect fitment and electrical compatibility. Its IP65 rating means you can install it outdoors without worrying about weather exposure—a rare advantage in the battery storage market. The integrated busbars and pre-wired cables reduce installation time and eliminate common wiring mistakes, while the expandable design lets you start small and scale to 81 kWh as your energy needs grow. Whether you’re preparing for grid outages, optimizing solar self-consumption, or building a commercial backup system, the DuraRack offers the ruggedness, simplicity, and scalability that professionals and homeowners demand.

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Frequently Asked Questions

The DuraRack ships as a single iron enclosure weighing approximately 100 lbs. Assembly involves positioning the unit on a level surface or pad, then stacking up to 4 eFlex 5.4kWh batteries inside using the included integrated busbars and battery cables. No special tools are required for battery installation, but two people are recommended for lifting and placement.
The DuraRack is designed exclusively for Fortress Power eFlex 5.4kWh batteries. One unit holds up to 4 eFlex batteries. You can expand to a maximum of 4 DuraRack units, accommodating up to 15 eFlex batteries total for a combined capacity of 81 kWh.
The DuraRack is constructed from iron and features an IP65 water and dust resistance rating, making it safe for both indoor and outdoor installations. The enclosure includes a passive cooling vent for warm climates and a DIN rail heater mount for cold climates, ensuring battery protection in varied environments.
Maintenance is minimal. Periodically inspect the enclosure for dust or debris buildup, especially around the passive cooling vent. Ensure the IP65 seals remain intact for outdoor installations. For cold climates, install a DIN rail thermostat (sold separately) to manage temperature. Battery maintenance follows eFlex guidelines, which are separate from the rack.
Returns are accepted within 30 days of purchase; the item must be unused and in original packaging. A restocking fee may apply. For support, contact Fortress Power directly or the store’s customer service team via phone or email. Warranty terms are not specified in the product data, so please verify at time of purchase.
The DuraRack is designed for homeowners or businesses needing to expand energy storage with Fortress Power eFlex batteries. It suits users requiring a scalable, IP65-rated enclosure for indoor or outdoor use, with capacity to grow from 4 to 15 batteries (up to 81 kWh). Ideal for off-grid solar, backup power, or renewable energy systems.
SKU: 7825460987 Categories: , Brand:

The Off Grid Vault Promise

Every product we carry earns its place on our shelf.

Ships Free Free shipping on every order, no minimums, no fine print.
30-Day Hassle-Free Returns Not the right fit? Return it within 30 days, no runaround.
Vetted for Real-World Use We only stock gear that passes our standards for build quality and field performance.

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About fortress power DuraRack

fortress power is a trusted manufacturer of premium durarack. OffGridVault is an authorized dealer offering the full fortress power lineup with free delivery, price match guarantee, and expert support.

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