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Charging the Batteries
Important Battery Information
•
Only use re-chargeable AAA NiMh battery of typical 800 mAh, 1.2 V. Never use a battery which
is damaged or worn out.
•
Heat or cold reduces the performance and life of the batteries. It is possible that a phone with hot
or cold batteries can be temporarily out of operation even if the batteries are fully charged.
•
Used batteries should be disposed of in accordance with local authority regulations.
•
Do not throw batteries in a fire.
Charging and Discharging
The batteries can be charged and discharged hundreds of times, but sooner or later they will be worn
out. If the operating time (i.e. talk and standby time) is significantly shorter than usual, then it is time to
replace the batteries.
To maintain optimum operating time, the batteries should be discharged from time to time by not placing
the phone in the charger but leaving it switched on until it switches itself off. Only use this method to
discharge the batteries.
Extreme temperatures influence the charging capability of the batteries.
Initial Setup and Operation
Charge the batteries approximately 6 to 7 hours before using the phone. This protective measure
extends the service life of the batteries.
The maximum power output is only attained after three to five charge and discharge cycles.
When replacing the batteries, ensure the correct polarity. Use only re-chargeable AAA NiMh battery of
800 mAh, 1.2V. The manufacturer does not accept liability for malfunctions or damage caused by using
other battery types or normal batteries.
Charging and Operating Times
•
Charging time: (empty batteries) to full capacity in approximately 6 to 7 hours.
•
Talk time: approximately 20 hours (with fully charged batteries).
•
Standby time: from 200 up to 300 hours (with fully charged batteries).
Charge Display
The charge status of the batteries is indicated on the display. This means:
•
batteries fully charged (80 – 100 %)
•
batteries 60 – 79 %
•
batteries 40 – 59 %
•
batteries 20 – 39 %
•
batteries 0 – 19 %
•
(frame flashes) batteries are empty: an alert tone is also given.
3711 Phone User Guide
IP Office
15-601084 Issue 5a (24th August 2007)
Introduction
Page 11
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