Getting started
fully charged. Charge the batteries only using the DECT Handset charger supplied with the handset.
Attention: Use a CPC N0162957 charger if you have a DECT 4027 or 4070 Handset, and a CPC N0206072 charger if you have a DECT 4075 Handset.
Charging guidelines
Observe the following when you charge your handset:
•Charge the battery for at least 6 hours before you use the handset for the first time. This protective measure extends the service life of the batteries.
Note: The batteries attain maximum power output only after several charging and discharging cycles.
•Do not leave the handset inserted into the charger for more than 30 days without using it.
•You can charge and discharge the batteries hundreds of times, but eventually they wear out. If the operating time (talk and standby time) becomes significantly shorter than usual, replace the batteries.
•To maintain optimum operating time, periodically discharge the batteries by leaving the handset off the charger and switched on, until the handset switches itself off. Use only this method to discharge the batteries. If you want to accelerate the discharge of the battery, you can enable the display. For more information about configuring power save, see “Configuring power save” (page 186).
Note: Extreme temperatures influence the charging capability of the batteries.
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