| 摘要 |
A method for managing charge levels of batteries is provided to accurately and quickly monitor the charge level of the battery in a slave device by displaying the battery charge level on a unique interface on a master device. A master device transmits a request signal to respective slave devices and requests the slave devices to display the battery charge levels(110). The master device awaits answers from the respective slave devices(120). The master device receives response signals from the slave devices(130). The response signal includes battery charge level parameters, which include a charge level index, a charging percent, and a remaining time. When the response signal is received, the master device displays the information on the battery charge levels of the respective slave devices on a display screen(140).
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