Hyperion Verizon Samsung Galaxy Nexus 3800mAh Extended Battery + Back Cover (Compatible ONLY with Verizon Samsung Galaxy Nexus SCH-i515) NOW WITH NFC CAPABILITIES Extend your talk time on your Verizon Samsung Galaxy Nexus (SCH-i515). 3800 mAh Battery Capacity (with Extended Back Cover). Designed and Manufactured by Hyperion Electronics Accessories. Batteries use Hyperion Accessories "A" Grade Lithium Ion Cells. All batteries come with a 3 month manufacturers comprehensive warranty.