Patent ID: 8890481

Claim:
A charging control device comprising: a computer that performs at least one of controlling charging to a rechargeable battery and monitoring a state of a rechargeable battery, while outputting pulse signals having a preset period which indicate an operation state of the computer; and a watch dog timer that determines whether or not the operation state of the computer is a predesignated specified operation state based on the pulse signals outputted from the computer, wherein the watch dog timer outputs a first reset signal and a second reset signal, when the watch dog timer has determined that the operation state of the computer is the specified operation state, the first reset signal is a signal to initialize the computer, the second reset signal is a signal to stop charging to the rechargeable battery, the computer outputs a charging permission/stop signal which selectively indicates one of permission and stop of charging to the rechargeable battery, and the charging control device further comprising a stop unit that includes a switching element to which both of the second reset signal and the charging permission/stop signal are inputted via a same input terminal of the switching element, the stop unit configured to stop the charging to the rechargeable battery regardless of indication of the charging permission/stop signal when the second reset signal is inputted to the same input terminal of the switching element from the watch dog timer.