Polycom KIRK 4020 - Manual (Page 5)

2. Battery installation
The battery is connected to the handset when it is shipped from the factory. To change the battery you must
unscrew the plate on the rear of the handset to access the battery compartment.
5
To remove the battery cover, use a normal screw driver.
Insert it into the small crack behind the blind cover and
break to open the handset.
Please note: The product label, including the CE logo, can be found in
the battery compartment.
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