| 摘要 |
A charger-free battery for mobile telephone includes one case and a rechargeable battery, it is characterized in that a cavity used for housing dry battery is positioned in the case, a positive end and a negative end which are in contact with the dry battery are positioned in said cavity, the positive end and the negative end are connected to the rechargeable battery, said dry battery and said rechargeable battery can be parallel connected, a diode which is used to prevent rechargeable battery from charging dry battery is positioned in the circuit in which the dry battery connects to the rechargeable battery in parallel. |
