The LI-92B Rechargeable Lithium Ion Battery is compatible with select OM System digital cameras. It features 3.6V of output power, a capacity of 1350mAh, and a rating of 4.9Wh. It charges externally with an optional UC-90 charger, in-camera via the compact f-2AC adapter, which is supplied with the camera, or with an optional f-3AC Adapter. | Olympus | | Rechargeable 3.6v 1350mAh 4.9Whr Li-ion Battery | Black | Best Buy