Fosmon (1 Pack) High Capacity 1400 mAh Replacement Battery for Sony NP-FG1 / NP-BG1 and Sony Cyber-Shot DSC H50, H10, W120, W170, W300 Digital Cameras and More Brand New 100% OEM Compatible Battery type: Lithium-Ion. Integrated microchip prevents overcharging & lengthens battery life No memory loss effect. Compatible Models /Replace PN : Sony NP-BG1 NP-FG1