Charge The Battery With The Usb Cable And A Usb Port On Your Computer - Cisco 8821 Administration Manual

Phone Battery Charging
You need to prepare the power adapter for use as described in
Procedure
Step 1 Plug the USB cable into the bottom of the phone with the pins aligned.
Step 2
Plug the USB cable into the power adapter.
Step 3 Plug the power adapter into the electrical outlet.

Charge the Battery with the USB Cable and a USB Port on Your Computer

You can charge your phone using your computer. When you use the computer to charge your phone, the
battery can take up to 6 hours to fully charge.
The wide connector on the USB cable connects to the phone using magnets to hold it secure. It has pins that
you need to align correctly. If you hold the phone so that the screen is towards you, the battery icon on the
connector is visible.
Do not charge the phone in a hazardous environment.
Caution
Do not charge the phone if it is wet.
Cisco Wireless IP Phone 8821 and 8821-EX Administration Guide for Cisco Unified Communications Manager
36
Prepare the Power Adapter, on page
Phone Setup
34.