Cisco 8821

Lithium ion batteryThe Cisco CP-BATT-8821= battery must be purchased separately, since the Cisco 8821 model is sold without it.Great autonomy We indicate the times given by the manufacturer of a fully charged battery:● Up to 11.5 hours of talk time (depending on phone firmware and charger version)● Up to 145 hours of standby time (auto scan)● Up to 45 hours of standby time (continuous scanning)It's important to note that for voice calls, battery hours are calculated by making a call and measuring the time it takes to fully deplete the battery. Actual battery hours may vary based on screen and keyboard activity, messages from an XSI app, scan mode, and use of Bluetooth headsets. Normally, the battery hours should cover an eight hour work shift.

Refurbished Cisco 8821 BatteryImproved Performance The refurbished Cisco 8821 battery offers a 2100 mAh capacity, ensuring extended talk and standby time. It's a perfect solution for replacing dead or defective batteries, keeping your Cisco 8821 phone in top condition.

Cisco 8821 Desktop ChargerYou can use the Cisco Wireless IP Phone 8821 Desktop Charger to charge your Cisco Wireless IP Phone 8821 and spare phone battery. The charger works on AC power or from a charged spare phone battery. It can be secured with a standard laptop cable lock. This charger has a label on the back to show the maximum voltage (4.35 V).You can use the Cisco Wireless IP Phone 8821-EX Desktop Charger to charge your Cisco Wireless IP Phone 8821-EX and spare phone battery. The charger works on AC power or from a charged spare phone battery. It can be secured with a standard laptop cable lock. The charger looks the same as the Cisco Wireless IP Phone 8821 Desktop Charger except that it shows the graphic of the Cisco Wireless IP Phone 8821-EX and doesn't have the voltage label.Built-in SpeakerphoneThe charger includes a speakerphone that you can use while the phone is docked. Use the phone volume buttons to control the speakerphone volume, and the Mute button on the charger itself. When the speakerphone is muted, the Mute button lights red.Phone Charging IndicationsWhen you put the phone into the charger, the phone indicates that the battery is charging with the red LED on the top of the phone. If the phone is turned on when you put it into the charger, you see a message on the screen. If the phone is turned off or the battery is too weak, you see an icon displayed on the screen. When the battery is charged, the phone LED is green.

Power Adapter for Cisco 8821The power adapter for your phone is compact. Before you use the power adapter, you have to unfold the prongs. After you use the adapter, you can fold in the prongs.The power adapter for your region may also require an additional clip to allow the adapter to be plugged into the electrical outlet.Charge the Battery with the AC Power SupplyYou can charge your phone using an AC power supply. When you use the power supply to charge your phone, the battery can take up to 3 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.