Mobile phone battery 1. High Energy Density Mobile Phone Battery The weight of a Li-ion of mobile phone battery is approximately one half compared to a nickel-cadmium of mobile phone battery or nickel-metal hydride of mobile phone battery of similar capacity. Moreover, the volume of the mobile phone battery is 40 to 50% smaller than that of a nickel-cadmium of mobile phone battery and 20 to 30% smaller than that of a nickel-metal hydride of mobile phone battery. 2. High Voltage Mobile Phone Battery A single Li-ion of mobile phone battery has a voltage of 3.7V, which is equal to either three nickel-cadmium of mobile phone battery or nickel-metal hydride of mobile phone battery connected in series. 3. Pollution-free Mobile Phone Battery The Li-ion of mobile phone battery does not contain any polluting substances such as cadmium, lead, mercury, etc. 4. Non-metal Lithium Mobile Phone Battery The Li-ion of mobile phone battery does not employ any lithium metal. The Li-ion of mobile phone battery is not governed by aircraft transportation rules relating to carrying Li-ion of mobile phone battery in passenger airplanes. 5. Long Cycle Life Mobile Phone Battery Under normal conditions, the Li-ion of mobile phone battery has a life of more than 500 charge/discharge cycles. 6. No Memory Effect Mobile Phone Battery The Li-ion of mobile phone battery is free from the so-called memory effect, a phenomenon seen in nickel-cadmium of mobile phone battery in which the apparent battery capacity decreases when shallow charge and discharge cycles are repeated. 7. Fast Charge Capacity Mobile Phone Battery The Li-ion of mobile phone battery can be fully charged in 1 to 2 hours, using a constant-current / constant-voltage (CC/CV) type dedicated charger with a rated voltage of 4.2V per cell. Mobile Phone Battery Applications The rechargeable Li-ion of mobile phone battery shows great promise as a battery to meet such requirement. This new Li-ion of mobile phone battery technology has excellent features, such as: High energy density, high voltage, good storage and cycle life characteristics