Timex T150 manual Lithium Battery Backup Installation, Battery Backup System

Lithium Battery Backup Installation

1.Gently turn the unit over and open the battery compartment door. If necessary, remove the 3 “AA” batteries to get to the lithium battery door.

2.Loosen the screw and remove the lithium battery door.

3.Replace the CR-2032 lithium battery, while making sure that the + and

– ends match up with the markings inside the battery compartment.

4.Place the door back on and tighten the screw, then reinstall the 3 “AA” batteries and close the battery compartment door.

Note: This unit comes equipped with a CR-2032 lithium battery used for battery backup purposes only. When the lithium battery is getting weak the Lithium Battery Low Icon ( LOW ) will flash on the left side of the display.

Battery Backup System

If the unit is being operated through AC power and there is a power interruption, the 3 “AA” batteries will takeover and run the unit. All settings, alarms, and instant weather will operate.

If the unit is operating through DC power (3 “AA” batteries) and there is a power interruption, then the lithium battery (CR-2032) will maintain the time and alarm time settings and operate the sure alarm. The sure alarm will default all alarms to buzzer and turn on for 2 minutes.

All settings will be lost if there is a power failure and no batteries are installed.