User Guide

Getting started

battery potential, charge unused battery packs occasionally or alternate

Battery Pack use.

After a length of time, battery packs lose the ability to maintain a charge

and perform at maximum capacity, and need to be replaced. This is

normal for all batteries. The recommended battery replacement interval is

every 12-13 months with normal usage.

Any battery which exhibits swelling, cracking, or other abnormality should

be disposed of promptly and properly.

If your battery pack requires replacement, contact your system

administrator.

Use the battery pack only as directed. Heat or cold reduces the

performance and service life of the batteries. Handsets with hot or cold

batteries can become temporarily out-of-service, even if the batteries are

fully charged. Charge the batteries only using the DECT Handset charger

supplied with the handset.

Charging guidelines

Observe the following when you charge your handset:

• Overnight charging is best done while the handset is turned off.

• If the handset does not charge, clean battery pack, charger, and

handset contacts with an alcohol swab.

• When the handset is properly seated, the backlight comes on briefly

and the handset beeps to indicate that charging has begun.

• 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.

Attention: 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.