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
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
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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
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Warranty applies if the eFlex MAX is installed by a licensed professional following the Fortress Power Installation Manual and Integration Guide.
Coverage Scope
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Defects Covered: Manufacturing defects in materials and workmanship.
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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:
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Installation or Removal by an unauthorized professional.
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Alteration, Modification, or Disassembly of the product.
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Normal Wear and Tear, Accidents, Misuse, or Abuse (e.g., dropping the product).
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Corrosion due to improper environmental exposure.
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Lightning, Fire, Flood, or other Acts of God.
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Damage from extreme temperatures (below 32°F or above 90°F).
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Water Damage or Shipping Damage.
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Damage from other system components like inverters, charge controllers, or fuses.
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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.