Avaya 4070 Manuel D’Utilisation

fully charged. Charge the batteries only using the DECT Handset charger 
supplied with the handset.

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.

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 

Extreme temperatures influence the charging capability of the 

batteries.

Use a CPC N0162957 charger if you have an Avaya 4027 
or 4070 DECT Handset, and a CPC N0206072 charger if 
you have an Avaya 4075 DECT Handset.