Specifications: chemistry: silver oxide voltage: 1.55 Volts dimensions: 6.8 Mm x 2.65 Mm brand: duracell qty: 24 cards 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