Hyperion Samsung Galaxy Nexus GT-i9250 3850mAh Extended Battery + Back Cover (Compatible ONLY with International Galaxy Nexus GT-i9250. NOT Compatible with Verizon Samsung Galaxy Nexus SCH-i515). Extend your talk time on your Samsung Galaxy Nexus GT-i9250 (International Model). Designed and Manufactured by Hyperion Electronics Accessories. All batteries come with a 3 month manufacturers comprehensive warranty. 3850 mAh Battery Capacity (with Extended Back Cover). Batteries use Hyperion Accessories "A" Grade Lithium Ion Cells.