FEATURES of Fortress Power DuraRack
Indoor/Outdoor Rated Protection
Built to handle the elements, the DuraRack enclosure is IP65-rated for water and dust resistance — so this makes DuraRack perfect for both indoor utility rooms and exposed outdoor environments.
Integrated Busbars & Cables
Pre-wired with built-in busbars and battery cables, the DuraRack simplifies installation and makes stacking multiple batteries faster and more organized.
Thermostat-Ready for Cold Climates Easily add a DIN rail-mounted thermostat to activate heating in low temperatures — ideal for cold-weather installations that demand year-round reliability.

Passive Cooling for Hot Climates
Designed with vented airflow to promote natural passive cooling, helping maintain optimal battery performance in warm environments.
Scalable Storage Capacity
Each DuraRack stores up to 4 eFlex 5.4kWh batteries, and is expandable up to 4 units (15 eFlex batteries, 81KWh)
Secure, Professional Appearance
The DuraRack combines durability with a clean, tamper-resistant design — providing a secure, polished solution for residential and commercial projects alike.