This Vivitar Battery Charger for Olympus BLN1 is a versatile Compact AC/DC Charger that is used to charge Olympus BLN-1 lithium-ion battery. It operates on 100-240VAC power, makes it universal for worldwide usage. It features a fold-out 2-prong US plug and is supplied with a European plug adapter, as well as a 12VDC car charger that plugs into a cigarette lighter.