ClearMax Battery (2-Pack) for Sony NP-BX1 and Sony Cyber-shot DSC-HX50V, DSC-HX300, DSC-RX1, DSC-RX1R, DSC-RX100, DSC-RX100 II, DSC-WX300, HDR-AS10, HDR-AS15, HDR-AS30V, HDR-MV1 This ClearMax kit includes 2 batteries for the Sony NP-BX1 High capacity / rechargeable li-ion battery with premium cell.- No Memory Effect - Lets you recharge partially drained batteries Built-In Safety Fuse - Prevents overcharging & lengthens battery life All items include a 2-year Manufacturer Warranty