Specification:Product name: XIAOMI ZI5 AA 1.2V 1800mAh NI-MH Recharger BatteryBrand:XiaomiModel:ZI5Capacity:1800mahOperating temperature: > -10\u2103Storage temperature: 20\u2103 (Full recharge)Voltage: 1.2vQuantity:4pcs(two black and two white)Size: 50.5mm * 14.5mmPackage included:4 x XIAOMI ZI5 AA 1.2V 1800mAh NI-MH Recharger Battery