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OutBack secures American-made battery cell supply for residential energy storage systems

By Kelly Pickerel | December 18, 2025

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OutBack Power will partner with New York-based lithium battery manufacturer Near Prime Technologies (NPT) to offer a domestic supply of battery systems for residential and commercial energy storage. NPT and cell company C4V will supply OutBack systems with BMLMP (BioMineralized Lithium Mixed Metals Phosphate) cells. The cells are UL 1973 and UL 1642 listed and have completed UL 9540A testing.

Under the contract, OutBack will integrate C4V’s BMLMP cell technology, manufactured in the United States by NPT, into OutBack’s storage products. Assembly and commercialization of the final systems will be driven by OutBack Power as a fully domestic residential energy storage solution.

“By partnering with Near Prime and C4V, we are aligning with a U.S.-based, defense-certified supply chain that ensures the long-term reliability, safety and domestic energy independence our customers demand. This is another major milestone in OutBack’s transformation,” said Randy Taylor, General Manager of OutBack Power.

Under the contract, OutBack Power has committed to purchasing 2 GWh of battery cells over the next five years. The agreement also includes options for annual renewals and volume expansion through 2030.

“This is about building resilience and trust,” said James Showalter, CEO of Energy Access Innovations (EAI), OutBack’s parent company. “We’re reshoring production, investing in long-term partnerships, and delivering on our promise of reliable, accessible energy for all. This is the same technology that has passed the U.S. Department of Defense qualification and are deployed in autonomous naval systems. We’re reshoring production, investing in long-term partnerships, and delivering defense-grade reliability to residential energy users.”

The collaboration also includes joint development of a custom BMS tailored to OutBack’s 28S1P, 103.5-V, 40-A architecture, optimized for C4V’s 53-Ah, 3.7-V U.S.-made cells.

News item from OutBack

About The Author

Kelly Pickerel

Kelly Pickerel has more than 15 years of experience reporting on the U.S. solar industry and is currently editor in chief of Solar Power World. Email Kelly.

Comments

  1. Tracy Zhao says

    December 19, 2025 at 1:08 am

    C4V is not the parent company of NPT – C4V owns the battery cell IP

    – Executive Director of NPT
    [email protected]

    Reply

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