阅读说明：本技术 会根据电池电量自动开启和关闭的电池充电器 (Battery charger capable of automatically turning on and off according to electric quantity of battery ) 是由 张鹏辉 于 2020-04-15 设计创作，主要内容包括：本发明提供了分开了一种会根据电池电量自动开启和关闭的电池充电器,所述充电器会根据电池的电量自动开启和关闭充电器所连接的电源,达到充电器连接电池,充电器开启充电器电源,充电器为电池充电,当电池电量充满后,充电器关闭充电器电源。在电池充电器内除原有的充电模块外还需加装电源开关、控制和分析模块、电压检测模块,在充电器的充电模块与电源之间加装一个电源开关,电源开关受控制和分析模块控制,电压检测模块连通充电器的充电口,即与电池相连且可检测电池电压。所述充电器的电压检测模块、控制和分析模块、电源开关最开始时利用电池内电力进行工作。(The invention provides a battery charger capable of being automatically turned on and turned off according to the electric quantity of a battery, wherein the charger can be used for automatically turning on and turning off a power supply connected with the charger according to the electric quantity of the battery, so that the charger is connected with the battery, the charger is used for turning on the power supply of the charger, the charger is used for charging the battery, and the charger is used for turning off the power supply of the charger after the electric quantity of the battery is fully charged. The battery charger is characterized in that a power switch, a control and analysis module and a voltage detection module are additionally arranged in the battery charger besides an original charging module, the power switch is additionally arranged between the charging module and a power supply of the charger and is controlled by the control and analysis module, and the voltage detection module is communicated with a charging port of the charger, namely is connected with a battery and can detect the voltage of the battery. The voltage detection module, the control and analysis module and the power switch of the charger work by utilizing the electric power in the battery at the beginning.)