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Fortress Power Indoor/Outdoor Battery Enclosure (stores 4 eFlex 5.4kwh units per rack)

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Top Authorized Dealer
Manufacturer Warranty Included
SKU DurarackMax
Original price $1,250.00 - Original price $1,250.00
Original price
$1,250.00
$1,250.00 - $1,250.00
Current price $1,250.00
Availability:
Low stock

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Price Match Policy

Price Match

Here at OffGrid Living Solutions, we want to offer you the best prices online.

If you happen to find a lower price for the same product, we will guarantee to match their price or beat their price. Note, this does not apply to all products in the store. Please reach out to us via email or chat if you want a price match or price beat.

For the policy to apply, please send us a screenshot, link, or any other evidence of the product being priced lower than ours before making the purchase.

Refer to our Price Match Policy Rules.

Refunds & Returns Policy

At OffGrid Living Solutions, we are proud to have the best refund and return policies in the industry. If you’re not satisfied with your purchase for any reason, you may return it to us within 30 days for a refund.

If you have a problem with our order (there are missing components, damages, or the product is not functioning), please reach out to us as quickly as possible. Some of the problems can be resolved by going through the product manual or the product FAQs.

Refer to our Refunds & Return Policy for more details.

Shipping & Delivery

Order Processing

Once we receive your order, we will send you a confirmation email. Then we will process the order by confirming that the product is in stock and ready for shipment. If any of the items in your order are back-ordered, we will reach to you via email or phone and you may choose to either wait or receive a 100% refund.

Please allow 1-3 days for processing your order.

Shipping

We ship to the lower 48 continental United States only at this time.

Shipping times and shipping method will depend on the specific product and brand you purchase. If you have any shipping question, feel free to ask on the chat or email us at info@offgridlivingsolutions.com.

We will send tracking information by email the same day the shipping tracking number is created/available.

Before you sign the shipping bill, please THOROUGHLY INSPECT YOUR ITEM. Signing for the receipt of a damaged product removes the liability of the shipping company and OffGrid Living Solutions. Once you accept your shipment as non-damage, your item is your property.

Delivery time

Shipping Timeline listed above is an estimate. Please call or message the web chat for precise ETAs.

Fortress Power Indoor/Outdoor Battery Enclosure (stores 4 eFlex 5.4kwh units per rack)

Description

Expand your energy storage with the new Fortress Power DuraRack! This iron enclosure stores up to 4 eFlex Max 5.4kWh batteries. The DuraRack paired with multiple eFlex Max batteries can build a 48V UPS server rack or provide storage capacity to home solar arrays. The DuraRack includes integrated busbars, and a DIN rail heater mount. This enclosure can be free-standing or pad mounted and is safe for indoor and outdoor installations.

Features

  • IP65 Water and Dust resistant for both indoor and outdoor install
  • Includes integrated busbar for easy stacking
  • Easy to add Din rail thermostat for cold climates
  • Passive cooling vent for warm climates
  • Expandable up to units (15 eFlex batteries: total 81 kWh)
  • Compatible with Eflex Max and Eflex G2.

Includes busbars and 4 sets of “+” and “-” battery cables

Product Specifications

Fortress Power Indoor/Outdoor Battery Enclosure (stores 4 eFlex 5.4kwh units per rack) Product Specifications

Specification Details
Enclosure Protection IP65
Maximum Battery Unit 4 eFlex Max 5.4
Storage Capacity Range 5.4 kWh – 21.6 kWh
Dimensions (H x W x D) 29.29 x 41.34 x 18.03 in / 744 x 1050 x 458 mm
Weight Without Batteries 153.2 lbs / 69.6 kg

Product Manual

DuraRack Data Sheet

DuraRack Installation Manual

UL9540A eFlex MAX Security with DuraRack

Product Warranty

Fortress Power Product Warranty

Limited Warranty Coverage

  • Duration: The warranty lasts for the first to occur of:
    • 10 years from purchase date
    • 8,000 cycles at 80% Depth of Discharge (DOD)
    • 3,000 cycles at 100% DOD
  • Warranty applies if the eFlex MAX is installed by a licensed professional following the Fortress Power Installation Manual and Integration Guide.

Coverage Scope

  • Defects Covered: Manufacturing defects in materials and workmanship.
  • Repair or Replacement: If the product is defective, Fortress Power can:
    • Repair the product
    • Replace it with the same or an equivalent model
    • Provide a credit for the remaining depreciated value for a new product.
  • The warranty covers the repair or replacement only and does not cover installation, removal, shipping, or reinstallation costs.

Exclusions from the Warranty

The warranty does not cover:

  • Installation or Removal by an unauthorized professional.
  • Alteration, Modification, or Disassembly of the product.
  • Normal Wear and Tear, Accidents, Misuse, or Abuse (e.g., dropping the product).
  • Corrosion due to improper environmental exposure.
  • Lightning, Fire, Flood, or other Acts of God.
  • Damage from extreme temperatures (below 32°F or above 90°F).
  • Water Damage or Shipping Damage.
  • Damage from other system components like inverters, charge controllers, or fuses.
  • Altered or Removed Serial Numbers.

Installation and Use Requirements

  • The product must be installed properly following the Fortress Power manuals.
  • It must not be used beyond recommended limits or in conditions that are outside the operational limits (e.g., temperatures outside 32°F to 90°F).

Warranty Transferability

  • The warranty is transferable only if the product remains in the original use location and is not moved.

Repair/Replacement Terms

  • The warranty for any repaired or replaced product is either 12 months from shipment or the remaining warranty period, whichever is greater.

This warranty highlights that it is important to follow proper installation procedures and to use the product within the recommended operational conditions. Unauthorized modifications or environmental factors outside the specified limits may void the warranty.

Product FAQs

Fortress Power Product FAQs

Does energy storage work well with my solar system?

Yes. On the grid? Absolutely! Energy storage adds a lot of value to your solar systems. It keeps your solar system operating when your utility service is interrupted. Without energy storage, your PV system will be forced to shutdown when the grid is off.

If you live off grid, energy storage enables you to use the clean solar energy to power your home day and night.

Fortress Power also knows you’re a fan of conservation—energy storage saves both your surplus solar energy and your cash since it reduces on grid energy dependence.

Can I use energy storage without solar panels?

Absolutely. For on grid clients, a home energy storage unit  stores energy from your electricity provider. If an outage occurs, home energy storage can provide up to 24 hours of potentially life-saving power. Need more reassurance? Fortress Power offers batteries with larger storage capabilities, completely customizable to your needs. And, like you, we appreciate saving money. When electricity is at its lowest daily rate, our smart energy storage units use that period to charge. When peak electric use occurs, our energy storage units can discharge power to suit your lifestyle.

What about power outage protection?

Power interruptions shouldn’t disrupt your schedule. An energy storage system will keep your solar system operating during grid outages. When paired with solar panels, an energy storage system supplies unlimited energy delivery. The solar panels power your home during the day and use any excess power to charge the battery. At night, the system keeps your space bright. When used without solar panels, power outage support is dependent on battery size and your energy use. Batteries providing at least 12 hours of backup power are safest.

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