Lenmar Replacement Battery for Olympus PEN E-P1 E-PL2 Evolt E-400 E-410 E-420 E-620 Replaces OEM Olympus BLS-1 PS-BLS1 BLS-5 Fits: Olympus PEN E-P1, E-PL2, Evolt E-400, E-410, E-420, E-620 Replaces: Olympus BLS-1, PS-BLS1, BLS-5 7.2V / 1150mAh Lithium Ion 2 Year Warranty Replaces Olympus BLS-1, Olympus PS-BLS1 Fits Olympus EVOLT E-410, EVOLT E-420, Evolt E-620 (See Product Description for Additional Fits) 7.2 Volts, 1150mAh Capacity Lithium-Ion 2 Year Warranty