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Mitel 5603 Wireless Handset User Guide
54
Maintenance
Maintenance of Batteries
Battery Warnings
During a call, only the corresponding battery warning signal will notify the user. The warning
signal cannot be silenced during a call. When not in call, the warning signal can be silenced
by pressing .
Charge the Battery
Place the handset in the desktop charger or in the rack charger. The battery is being charged
when the LED on the handset is steady orange. When the battery is fully charged the LED will
be green.
An animated battery icon is also shown in the display indicating charging by starting with
its current charge and ending with the full charge. A filled battery icon indicates a fully
charged battery.
Replace the Battery
If the standby time for the handset becomes too low, the battery should be replaced by a new
one. Please contact your system administrator or your supplier, for information about new
batteries. Attach the battery as described in the illustration below. The battery is easy to replace.
It is attached inside the battery lid and is connected to the handset in such a way that no
miss-contact is possible.
The "Low battery" icon appears when the battery has 10% or less remaining capacity left.
In addition; a warning signal sounds every minute, the LED flashing orange, and the
window "Battery low. Charge now." appears.
The "Empty battery" icon is flashing when the battery has 5% or less remaining capacity
left. In addition; a warning signal sounds every second, the LED flashing red, and the
window "Battery empty. Shutting down." appears.
Note: Only use the prescribed chargers for charging.