Listing is for 5 Pack of Maxell 379 Halogram package.Maxell 379 SR521SW Coin Cell BatteryMaxell Coin Cell Battery 379 SR521SW is most often used as a watch battery replacement. Button battery cells can also be used in other electronic devices such as keyless remote entry systems for cars and homes, in hand-held electronic devices, and as batteries in caluclators, photo cameras, audio books, games, toys, and more. Has a shelf life of 5+ years.Brand / Type: MaxellModel: 379 SR521SWChemistry: Silver OxideOutput Voltage: 1.55VHeight: 2.15mmWeight: 0.002lbsDiameter: 5.8mmCapacity: 14-16 mAhEquivalent Battery Types:AWI S56, Beltone B379L, Bulova 618, Citizen 280-59, Duracell D379, 379B, Eveready 379, Gold Peak GP79, I.E.C. SR63, Neda 1191SO, Panasonic SP379, SR521SW, Rayovac RW327, 379-1W, Renata 50, Seiko SB-DC, SBDC, SBAC, TR521SW, Sony SR521SW, Timex Type JA, Toshiba TR521SW, Varta V379, 520, Vinnic S521S, Other 8073Maxell 379 SR521SW Coin Cell Battery, 1PCMaxell Coin Cell Battery 379 SR521SW is most often used as a watch battery replacement. Button battery cells can also be used in other electronic devices such as keyless remote entry systems for cars and homes, in hand-held electronic devices, and as batteries in caluclators, photo cameras, audio books, games, toys, and more. Has a shelf life of 5+ years.Brand / Type: MaxellModel: 379 SR521SWChemistry: Silver OxideOutput Voltage: 1.55VHeight: 2.15mmWeight: 0.002lbsDiameter: 5.8mmCapacity: 14-16 mAhEquivalent Battery Types:AWI S56, Beltone B379L, Bulova 618, Citizen 280-59, Duracell D379, 379B, Eveready 379, Gold Peak GP79, I.E.C. SR63, Neda 1191SO, Panasonic SP379, SR521SW, Rayovac RW327, 379-1W, Renata 50, Seiko SB-DC, SBDC, SBAC, TR521SW, Sony SR521SW, Timex Type JA, Toshiba TR521SW, Varta V379, 520, Vinnic S521S, Other 8073