This is the latest released Ni-Cd battery for Walkie Talkie and and it will bring your walike talkie a powful life. The electric core types: Nickel cadmium battery Battery type: PB-40 Fit the brand: KENWOOD Applicable models: TK-2118 TK-3118 The charging temperature: 10 ~40'C The discharge temperature: 0 ~60'C Storage temperature: -20 ~35'C Capacity: 600mAh Voltage: 7.2V