Brochure
www.FortressPower.com • Sales@FortressPower.com • 877-497-6937 • 505 Keystone Road, Southampton PA, 18966, USA
Enclosure Material Carbon Steel
Enclosure Protection IP20 (Indoor)
Enclosure Color White
Dimension 600 x 600 x 1200mm(23.6 x 23.6 x 47.2in
Weight 69.6kg/153.2lbs
Maximum Battery Unit 4 eFlex 5.4
Storage Capacity Range 5.4kWh - 21.6kWh
Knockout Size 1 inch & 2 inch
Positive and Negative Battery Busbars 2 x 4 points; M8 (5/16) Terminal Rings
Positive and Negative Busbars to Inverter 2 points; M10 (3/8) Terminal Rings
Battery Cables 4 sets of “+” and “-” #4 battery cables
Terminal Torque 7.0 - 7.7 Nm (5.1 - 5.7 ft-lb)
Warranty 3 years
front view
1159.45 mm (45.6 in)
side view
1201.48 mm (47.3 in)
609.50 mm (23.99 in)
599.50 mm (23.6 in)
129 mm (5 in)
598 mm (23.5 in)
59 mm (2.3 in)
63.5 mm (2.5 in)
35.7 mm (1.4 in)
top view
ABOUT FORTRESS POWER
Fortress Power proudly services homes, businesses, utili-
ties, telecom and transportation companies worldwide. Our
Pennsylvania-based team’s passion for clean energy stor-
age has earned us a place among the world’s top energy
storage battery manufacturers.
Our logistic centers located across the country offer easy
distribution to all of our major markets. Fortress Power’s
high-performance solar lithium battery storage products are
designed, engineered and inventoried, with live technical
support in the United States.
Fortress Power has partnered with industry leading lending
institutions to help make your solar investment as easy as
possible. Please visit our website for purchasing and financ-
ing options.
INTERESTED IN BECOMING
A CERTIFIED INSTALLER?
Join us to bring the latest energy
storage products to millions of homes
and businesses across the world.
SCAN ME
FlexRack
for Fortress eFlex 5.4 kWh lithium batteries