Energizer ENB-O50B Digital Replacement Battery LI-50B for Olympus MJU 1030 SW, 9010 and Tough 8010 (Black) Replaces the Olympus LI-50B Li-ion Battery Battery Specs: 3.7V 770mAh Compatible with Olympus MJU 1030 SW/9010/Tough 8010 and similar digital camera models Can be used with original lithium-ion battery charger This Li-ion battery is 100% memory-free and will not suffer from the inconvenient memory effects that are typically associated with similar battery types.