User guide

32
Installation
Telephone base backup battery installation
You can install a backup battery in the telephone base to guarantee continual operation during a power outage. The telephone
base backup battery only supports complete operation for the telephone base and handset on line 1 during a power outage.
You can buy rechargeable battery (BT264392/BT266342) for the telephone base. When the battery is installed and AC power is
connected, the battery will be recharged.
You should replace the installed battery when the LED next to the battery compartment ashes.
Install the battery as shown below.
Insert a 5 mm standard screwdriver in the provided slot and then twist and lift to remove the battery compartment cover.
Plug the battery connector securely into the socket inside the battery compartment.
Place the battery with the label THIS SIDE UP facing up and the wires inside the battery compartment.
To replace the cover, align all the tabs on the telephone base battery cover against the corresponding grooves on the telephone
base, then rmly push downward until all the tabs lock in the grooves. Install the screw at the bottom of the handset.
Replace a telephone base backup battery
Insert a 5 mm standard screwdriver in the provided slot and then twist and lift to remove the battery compartment cover.
Unplug the battery connector from the socket and then remove the battery from the battery compartment.
Follow Step 2 to Step 4 in Telephone base backup battery installation above to install a new battery.
CAUTIONS:
There may be a risk of explosion if a wrong type of battery is used. Use only rechargeable battery (BT264392/BT266342). To order a battery,
visit our website at www.vtechhotelphones.com or contact your local distributor.
Dispose of used batteries according to the information in Product disposal instructions on page 84.
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Analog cordless 1-line/2-line - CTM-A2411-BATT/CTM-A2421-BATT
BY 1021
Screw
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4
LED