User guide

Installation
9
Activating Mobile Unit
Important Battery Information
Use batteries only as intended. Never use a battery that is damaged or used.
Heat or cold reduce the battery performance and life span. A mobile unit with hot
or cold batteries may be temporarily inoperable even though they are fully
charged.
Dispose of used batteries in accordance with local government requirements. Be
sure to recycle them!
Never throw batteries into a fire.
Charging and Discharging
A battery can be charged and discharged hundreds of times but is used up at
some point. If the operation time (i.e. calling and stand-by time) becomes signifi-
cantly shorter than normal, it is time to replace the batteries.
In order to attain long operation times, batteries should be discharged from time
to time by removing the mobile unit from the charging station and leaving it
switched on until it switches itself off. Only use this method for discharging bat-
teries.
Extreme temperatures affect the charging capacity of the battery.
Commissioning
Load the battery ca. 5 to 6 hours before using the mobile unit for the first time.
This precautionary measure helps extend the battery life span. Maximum battery
performance is achieved only after three to five charge and discharge cycles. Place
the mobile unit regularly onto the charger to charge the battery optimally.
Observe the correct polarity when replacing the batteries (see page 10).
Note:
It is strictly mandatory to use only those battery types approved by the
manufacturer. If other battery types are used, the manufacturer assumes no
liability for any defective functioning or damages occurring.
The batteries have to be charged first for your mobile unit to be operational. Now
you can subscribe the mobile unit (see Subscribing Mobile Unit starting on
page 14). Then you can use your mobile unit to make a call.