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UL9540 Second Edition: Fortress Batteries, Sol-Ark Inverter Meet New Requirements

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UL9540 Second Edition: Fortress Batteries, Sol-Ark Inverter Meet New Requirements

Battery/Inverter Pairing Meets UL9540 Second Edition Requirements in the Most Stringent Jurisdictions LANGHORNE, PA. (December 8, 2022) – Fortress Power is proud to announce that its eFlex and eVault Max batteries have passed a combined test to meet the standards

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The Evolution of Residential Energy Storage

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The Evolution of Residential Energy Storage

Residential energy storage continues to evolve. What's old is new again, as battery backup becomes essential for complete solar arrays.

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Heralding in the age of high-voltage residential battery storage

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Heralding in the age of high-voltage residential battery storage

At RE+ 2022 (formerly SPI) Conference in Anaheim, CA, Fortress Power’s Director of Product, John Cromer, introduced the industry to a number of Fortress Power products that will be available starting in 2023. The crown jewel is the High Voltage

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Fortress Power

Firmware Update

From time-to-time your battery may require a firmware update. Please visit the linked firmware page to download the software and firmware for your battery model. Once you have downloaded the software and drivers please reach out to Fortress Power to schedule a time for us to help you update your battery.

Fortress Power

Dealer Download Center

Fortress Power is committed to providing you with the top notch technical support possible. We also make sure all documentation is easily accessible and easy to find.  Access our datasheets, installation manuals, spec sheets and video library here. 

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Video Library

InverterCompatibility

Fortress Lithium Iron Phosphate batteries are designed to work with most 48VDC inverter and chargers available on the market. Below is a list of compatible inverters and chargers. You still need to design to the maximum inverter amperage and consult with inverter minimum battery sizes. If you can’t find the inverter on the list or have sizing questions,
please call us at 877-497 6937 or
email us at [email protected]