Galvion has unveiled the Nerv Centr® SoloPack™ Arctic, an extreme-cold rechargeable battery engineered to deliver reliable power to soldiers operating in Arctic environments.
As modern military operations grow increasingly reliant on powered equipment—including communications, navigation, sensing, and situational-awareness systems—reliable energy has become mission-critical. Extreme cold can significantly constrain conventional battery performance, creating additional operational challenges for military personnel in Arctic environments.
Developed in collaboration with South 8 Technologies, SoloPack Arctic is the first product to emerge from a partnership announced in November 2025. The battery incorporates South 8’s ARCTIC™ AE35 18650 cell, which uses the company’s proprietary LiGas® liquefied gas electrolyte technology. The cell is engineered to deliver power across a temperature range of -60°C to +60°C (-76°F to +140°F), extending lithium-ion performance into extreme-cold environments while maintaining capability across its specified high-temperature operating range.
Building on Galvion’s original SoloPack battery, the Arctic variant retains the familiar 98Wh lightweight form factor while extending its capability for extreme-cold operations. Weighing 1.2 lbs (544 g), with an energy density of 178 Wh/kg, the compact, soldier-worn power solution is designed for integration with existing equipment and power-management systems.
Beyond its extended temperature range, South 8’s ARCTIC cells have demonstrated additional safety characteristics. During cell-level ballistic penetration testing, the cells demonstrated the ability to evacuate electrolyte following penetration, reducing burn duration to seconds at the individual cell level and reducing the risk of propagation to adjacent cells. This characteristic could provide benefits for soldier-worn power applications across different operating environments.
Jonathan Blanshay, Founder and Executive Chairman of Galvion, said, “Arctic readiness is becoming an increasingly important requirement for the U.S. and allied forces, and reliable power is fundamental to operating effectively in those environments. Extreme cold exposes the limitations of equipment that performs well under normal conditions, so we need to ensure that the technologies soldiers depend on are ready to perform wherever the mission takes them. SoloPack Arctic reflects our approach to capability development: identify a real operational challenge, bring together the right technologies and partners, and deliver a practical solution for the warfighter.”
Initial quantities will be deployed in upcoming U.S. Army field evaluations, including U.S. Army DEVCOM and the International Cooperative Engagement Program for Polar Research (ICE-PPR)’s Operation Mjölnir, providing opportunities to assess performance in operationally relevant extreme-cold conditions.
SoloPack Arctic will make its debut at AUSA 2026 in Washington, D.C., October 12–14, alongside Galvion’s Nerv Centr power and data solutions at Hall E, Booth 7917.
