Hyperion Samsung Galaxy Note 3 6400mAh Extended Battery + Black Back Cover (Compatible with Verizon Samsung Note 3 / At&t Samsung Galaxy Note III / Sprint Samsung Note 3 / ALL International Samsung Note 3 SM-N900 Models) [2 Year Warranty] (Black) Extend your talk time on your Samsung Galaxy Note 3 (Compatible with All US and International Versions). 6400 mAh Battery Capacity (with Black Extended Back Cover). NOW Compatible with NFC/GOOGLE Wallet. Batteries use "A" Grade Lithium Ion Cells. Distributed by Hyperion Electronics Accessories. 2 Year No Hassle Warranty!