Patent ID: 8643339

Claim:
A battery pack comprising: a status detection unit for detecting a status of a battery; a switch unit for interrupting a discharging path of the battery; a notification unit for notifying a user of the status of the battery; an operation unit operable by the user; and a control unit for opening and closing the switch unit, the control unit being configured to have the switch unit perform interruption of the discharging path of the battery when the status of the battery detected by the status detection unit is an abnormal status wherein the status detection unit includes a voltage detection unit for detecting a voltage of the battery, wherein the control unit interrupts the discharging path without a notification of the notification unit when the voltage of the battery continues to be equal to or smaller than a first predetermined voltage for a first specified time period, wherein the control unit has the notification unit notify the user of an availability to restart a discharging operation and close the switch unit in response to an operation signal inputted from the operation unit to make the battery pack dischargeable when the voltage of the battery is increased to a second predetermined voltage within a second specified time period after the interruption of the discharging path, wherein the status detection unit includes a temperature detection unit for detecting the temperature of the battery, wherein the control unit interrupts the discharging path and has the notification unit notify the user of a temperature rise when the temperature of the battery detected is equal to or higher than a first predetermined temperature, wherein the control unit has the notification unit notify the user of the availability to restart the discharging operation and close the switch unit in response to the operation signal inputted from the operation unit to make the battery pack dischargeable when the temperature of the battery detected is decreased to a second predetermined temperature or less, and wherein the discharging operation is restarted in response to the operation signal input by the user from the operation unit.