44
Caution
Don’t immerse batteries in water, 
throwthemintoareordisposeof
them with ordinary domestic refuse.
BT accepts no responsibility for 
damage caused to your BT3110 by 
using any other types of batteries. 
There is a risk of explosion if 
incorrectbatteriesaretted.
Safety 
• Only use the power supply suitable 
for the BT3110. Using an 
unauthorised power supply will 
invalidate your guarantee and may 
damage the phone. The item code 
for the base mains power supply is 
094096. If you’ve bought a 
multiple pack, the item code for 
the charger mains power supply 
is 094096.
• Use only the approved 
rechargeable batteries supplied. 
Spare rechargeable batteries are 
available by calling Discom on 
0800 9808 999*.
• Don’t open the handset (except to 
replace the handset batteries) or the 
base. This could expose you to high 
voltages or other risks. Contact the 
Helpline on 0800 145 6789* 
for all repairs.
Important
Thisequipmentisnotdesignedfor
making emergency phone calls when 
the power fails. Alternative 
arrangements should be made for 
access to emergency services.
This product is intended for 
connection to analogue public 
switched phone networks and 
private switchboards in the 
United Kingdom.
Replacing the handset batteries
Afteratime,youmightndthatthe
handset batteries run out of charge 
morequickly.Thisisastandardsign
of wear and the batteries will need 
replacing.
1.
 Open the battery  
compartment cover.
2.
 Lift the batteries out and 
remove them. Replace with two 
new AAA Ni-MH 300mAh 
rechargeable batteries.
3. Replace the battery  
compartment cover.
General information