When the need arises to replace the handset battery, the following instructions should be followed.
The ten screws should be removed carefully using a No.1 Pozidrive screwdriver. The outer four corners should be removed last.
Once the clear cover has been removed and the legend plate put to one side, the main display board is visible.
The two screws in the picture below at the top right and bottom left of the board should be removed. Be careful not to touch any components or the LCD display.
Ensure you are adequately grounded, by using an antistatic wristband or similar connected to an adequate earth. Do not directly touch any board components. Gently prise the highlighted connectors from the board. There are three in total, the far right being small.
Once the board has been lifted out of the way, the SAFT LS14500 3.6v battery can clearly be seen. Replacement of the battery is straight forward, however correct battery polarity must be strictly observed.

Re-assembly of the handset is the reverse of these instructions. Ensure all dirt and debris is excluded from the inside of the handset and the ’O’ ring is clean and very lightly lubricated.

Look carefully under the pictures and you will see a PDF document you can download and keep with comprehensive instructions.

If you are not happy to do this, we can carry out battery replacement for a small charge.