... -ion battery,with dual functions of both backup battery and charger,you can be easy and convenient to carry "i-energy ... ,over-charging,and over-discharging Weight: 145g Cycle life: over 500 times Working Temperature: -10 to + 55 Storage & Shipping Temperature: -20 ... , GPS,bluetooth headset etc portable devices Standard accessories: One battery charger One USB cable 5 pcs charge connectors: (iPod x 1 ...