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Replacing and Installing Clock Backup Battery
Note: The CR2450 lithium battery is included in the unit. Please pull out the battery
pull tab before you use the unit.
This model is equipped with a battery backup circuit that will maintain the time and
alarm time settings in the event of a temporary power interruption. The battery backup
circuit will also operate the buzzer alarm to wake you up at the selected wake up time
even if the power is out. The battery backup circuit requires one CR2450 lithium
battery, included.
When the backup battery is getting weak the Low Backup Battery Indicator will begin
flashing in the display. When you see this flashing indicator you should replace the
backup battery as soon as possible. Purchase a replacement CR2450 battery,
available wherever batteries are sold, and follow steps 1 through 4 below to install
the replacement battery.
To replace the backup battery:
IMPORTANT: When replacing the backup battery be sure to have the unit connected to the AC outlet to maintain all of
your settings, otherwise it will be necessary to reset the time and alarm time after the battery is replaced.
1. Place unit face down. Locate the battery backup compartment found on the bottom of the unit.
2.
Use a Phillips screwdriver to open the battery compartment cover. Remove the cover and remove the exhausted
CR2450 battery.
3.
Insert a fresh CR2450 battery in the backup battery compartment with the "+" side facing up, as illustrated.
4.
Replace the battery compartment cover and screw the compartment door back in place. Do not overtighten.
Confirm that the backup battery indicator is not flashing in the display.
Note: Make sure you dispose of battery properly (see your local regulations).
WARNING: Lithium batteries can explode or cause burns if disassembled, shorted, recharged, exposed to water, fire,or
high temperatures. Do not place loose batteries in a pocket, purse, or other container containing metalobjects, mix with
used or other battery types, or store with hazardous or combustible materials. Store incool, dry, ventilated area. Follow
applicable laws and regulations for transport and disposal.
Using the
13
iBT290
Replacing Backup Battery
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