This pack contains four 4LR44 6V alkaline batteries, featuring a manganese dioxide (MnO2) chemical system designed to provide hundreds of hours of reliable service - especially in photographic applications. In addition to digital cameras, these cells are also used in dog collars, invisible pet fences and portable medical instruments such as glucose meters.The typical current capacity of these batteries is 178 mA/h, depending on the load and temperature. Small and cylindrical in shape, each cell comprises four LR44 type batteries housed within a metal jacket and joined in series to produce a nominal 6.0 Volts.These batteries may be used in equipment which specifies K28L, L544, L544BP, PX28L, 2CR1/3N, CR28L, 1406LC, 2CR11108, 4SR44, V28PXL and V403PX size codes. These 4LR44 cells weigh 9.8 grammes with a maximum diameter of 13 millimetres and height of 25 millimetres.