Quick view Altitrack Altimeter Battery - 1/2 AA 3.6V Altitrack Altimeter Battery - 1/2 AA 3.6V Voltage: 3.6 Volts Capacity: 1200mAh Chemistry: Lithium Dimensions: Diameter .56" x Height 1.00" Terminal: Button Top MSRP: Was: Now: $8.95 Add to Cart Compare