A BATTERY-OPERATED RADIO TELEPHONE

摘要

A battery (2) operated mobile phone (1) has a switch (4) which detects a movement of the phone's battery pack (2). When the battery pack (2) of the mobile phone (1) is replaced, the switch (4) causes an interrupt to the MCU (5). The interrupt notifies the MCU (5) that the power supply will be cut off for the time during which the battery pack (2) is replaced. In this case necessary data can be stored to the EEPROM memory (6).