Maximum energy endurance for high-drain industrial applications. The Uniross UER26500 (C-size) is a high-performance Lithium Thionyl Chloride (Li-SOCl2) battery engineered for B2B sectors requiring superior capacity and reliability in mission-critical environments. With a massive 8.5 Ah nominal capacity and an energy density exceeding $620~Wh/kg$, this cell provides long-term power for heavy-duty industrial instruments and smart infrastructure.Designed with a high-capacity bobbin-type construction, the UER26500 delivers a stable 3.6V output and a 10-year service life, making it the primary choice for professional deployments where battery longevity is essential.