Specifications: Chemistry: Silver Oxide Voltage: 1.55 Volts Dimensions: 6.8 mm x 2.65 mm Brand: Sony QTY: 10 Ideal for the following applications: Laser pointers Watches Cameras Alarm transmitter Rescue heroes Children Books Calculators Blood Pressure Instrument Sugar Level Detectors Many Others Equivalent Batteries: SR626SW, SR626, LR626, L626, S626E SR66, LR66 V377, D377, GP377, 377, 377A AG4, G4A, G4, SG4 376, 606, 565, 177 GP77 SB-AW 280-39 BA