Phone Battery Charging - Cisco 8821 Administration Manual

Phone Setup
The battery has metal contacts that must connect to the contacts in the phone. The battery also has an arrow.
When the battery is correctly inserted, the arrow is visible and points towards the connector on the base of
the phone.
a) Align the battery to the bottom of the battery compartment. Make sure that the metal contacts on the phone
and battery face each other.
b) Press the battery into the battery compartment until it locks in place. Make sure that it is flat in the
compartment.
Step 3 Inspect the gasket on the inside of the battery compartment cover and, if necessary, clean it with a cloth
dampened with water.
Caution
Step 4 Replace the cover to the battery compartment.
Caution
a) Align the tabs at the bottom of the cover into the notches on the phone.
b) Press the cover firmly against the phone until it clicks in place.
c) Press the center of each side of the cover until it clicks in place.
d) Check that the cover is flush with the phone.

Phone Battery Charging

You can charge the battery using any of the following options:
• USB cable—You can charge the phone with an AC power adapter or your computer.
• Desktop charger—You can use the phone and charge it at the same time.
• Multicharger—You can charge several phones at the same time.
Explosion Hazard: Do not charge the phone battery in a potentially explosive atmosphere. Statement 431
Warning
The battery takes about 3 hours to charge in the AC power adapter, desktop charger, or multicharger. It takes
about 6 hours to charge using the USB cable and your computer.
Do not use oil- or alcohol-based cleaners on the gasket. These cleaners will damage the gasket
and void the phone warranty.
When you close the battery cover, make sure that it is completely closed. Otherwise dust and water
can enter the battery compartment.
Cisco Wireless IP Phone 8821 and 8821-EX Administration Guide for Cisco Unified Communications Manager
Phone Battery Charging
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