Battery Backup
A 9-volt battery can be installed to retain time and the programming of the alarm settings in case of a power outage. When the power comes back on, the clock’s previous time and alarm settings will be still be operational. During a power outage, the clock will not display the current time and all its alarm functions will not be operational. Be sure to plug the unit in before installing batteries. Failure to do this could cause the time to be slow by four hours per day outside the United States and Canada. If this problem occurs, unplug the unit and remove the batteries. Then plug the unit in before installing batteries. Please observe caution when handling electrical appliances.
