Cisco 8821 Accessory Guide

Charge Your Spare Battery with the Desktop Charger
You can charge a spare battery in the desktop charger. The battery can take up to 3 hours to charge.
Do not charge the battery in a hazardous environment.Caution
When the battery is charging, the spare battery LED on the charger lights red. When the battery is charged,
the spare battery LED on the charger lights green.
Procedure
Step 1
Hold the battery so that the Cisco label faces you, and the arrows on the battery point down.
Step 2
Place the spare battery in the slot behind the phone cradle and press down firmly.
Cisco Wireless IP Phone 8821 and 8821-EX Multi Charger
You can charge up to six phones and six spare batteries at the same time with the Cisco Wireless IP Phone
8821 and 8821-EX Multi Charger. If your phone is in a protective case, you can charge it without removing
the case.
You can place the multicharger on a work surface or mount it on a wall with the wall mount kit. You can also
secure the multicharger with a standard laptop cable lock.
The LED beside the battery slot shows the charging status. When the battery is charging, the LED lights red.
When the battery is charged, the LED lights green.
Battery slot LEDs can take several minutes to indicate that the battery is fully charged. If you move a
fully-charged battery to another slot, the LED might initially light red before it turns green.
Cisco Wireless IP Phone 882x Series Accessory Guide
11
Cisco Accessories
Charge Your Spare Battery with the Desktop Charger

Cisco 8821 Specifications

General

Wi-Fi	Yes
Ethernet LAN	No
Wi-Fi standards	802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Bluetooth version	3.0+HS
Security algorithms	EAP-FAST, EAP-TLS, PEAP, WPA
Networking standards	IEEE 802.11a, IEEE 802.11ac, IEEE 802.11b, IEEE 802.11d, IEEE 802.11e, IEEE 802.11g, IEEE 802.11n, IEEE 802.11r
USB 2.0 ports quantity	1
Voice codecs	G.711, G.711a, G.722, G.729, G.729ab, iLBC
Volume control	Digital
Product type	IP mobile phone
Product color	Black
Input frequency	50 - 60 Hz
AC adapter input voltage	100 - 240 V
AC adapter output current	0.2 A
Display diagonal	2.4 \
Display resolution	240 x 320 pixels
Frequency band	2.412, 2.472, 5.180, 5.240, 5.260, 5.320, 5.500, 5.700, 5.745, 5.825 GHz
Lines quantity	- lines
Phonebook capacity	- entries
Storage temperature (T-T)	-30 - 60 °C
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Safety	UL 60950-1, CAN/CSA 60950-1, EN 60950-1, IEC 60950-1, AS/NZS 60950.1, IEC 60529 (IP 67)
Certification	● 47 CFR 15 B ● ICES-003 B ● EN 55022 B ● AS/NZS CISPR 22 B ● CISPR 22 B ● VCCI B ● EN 61000-3-2 ● EN 61000-3-3 ● KN 22 B ● EN 55024 ● EN 50082-1 ● EN 61000-6-1 ● EN61000-6-3 ● EN 300386 ● EN 60601-1-2 ● KN
Number of handles included	1 pc(s)
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	17 mm
Width	56 mm
Height	132 mm
Weight	126 g