SIMULTANEOUS METHOD FOR CHARGING SECONDARY BATTERY

摘要

PURPOSE: A simultaneous charge method of a secondary battery is provided to reduce a charge time by simultaneously charging two battery packs. CONSTITUTION: An alternating current power supply applied from an external power supply terminal is converted into a direct current power supply and the direct current power supply is applied to a micro controller. The alternating current power supply is applied to a constant current section and the first charge section(S1). A micro controller judges whether the secondary battery is inserted into the first battery pack(S2). When the secondary battery is inserted into the first battery pack, an alternating current is supplied to the first charge section(S3). A micro controller judges whether the secondary battery is inserted into the second battery pack(S4). When the secondary battery is inserted into the second battery pack, the power supply is applied to the second charge section(S5). A control signal is outputted to a charge status display device to display a charge status to a user(S6).