Fortress Power LLC DuraRack DC energy storage system

The Fortress Power LLC DuraRack DC energy storage system is a home battery range from Fortress Power LLC with 3 models. Models store 10.75 kWh – 21.5 kWh in Lithium Iron Phosphate cells. Rated AC power 9.22 kW – 13.82 kW. Listed and verified: UL 9540. Sold in United States.

Specifications

Capacity: 10.75 kWh – 21.5 kWh
Battery chemistry: Lithium Iron Phosphate
Rated AC power: 9.22 kW – 13.82 kW
Models in this range: 3

Product details

Product type: Home battery
Brand: Fortress Power LLC
Category: Home Battery Storage
Sold in: United States
Listed in: California Energy Commission

Models (3)

Model	Nominal capacity	AC power
DuraRack DC energy storage system-10.8P2	10.752 kWh	9.216 kVA
DuraRack DC energy storage system-16.2P3	16.128 kWh	13.824 kVA
DuraRack DC energy storage system-21.6P4	21.504 kWh	13.824 kVA

Certifications

Certification	Market	Status	Reference	Valid until
UL 9540	United States and Canada	✓ Verified 19 October 2026	Intertek

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