1. Align the two holes of the battery plug with the socket pins in the handset battery compartment, matching the red and black wires to the colour-coded label.
2. Place the battery in the compartment with the wires in the upper left corner.
3. Position the battery compartment cover and slide it towards the unit until it clicks into place.
4. For optimal performance, we recommend that you charge the handset for 18 hours.
You can keep the battery charged by returning the handset to the telephone base after each use.
When the battery power is fully depleted, a full recharge takes about 16 hours.