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In this article
Feedback?Read through the following information before charging the Cisco Wireless Phone 9821 battery.
You can charge the battery using any of the following options:
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USB cable—Charge the phone using an AC power adapter or your computer.
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Desktop charger—Charge the phone while using it simultaneously.
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Multicharger—Charge up to six phones and six batteries at the same time.
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.
If you need longer talk times, having a spare, fully charged battery is recommended. Spare batteries can be charged using the desktop charger or multicharger.
Do not charge the phone in a hazardous environment.
Do not charge the phone if it is wet.
Prepare the power adapter
The power adapter for your phone is split. Before using the power adapter, you have to attach the power adapter replacement plug to the power adapter.
| 1 |
Align the tabs on the underside of the plug with the recesses on the power adapter. |
| 2 |
Slide the plug into the power adapter until it clicks into place. 
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What to do next
To remove the power adapter replacement plug, press and hold the PUSH button and slide the power adapter replacement plug up.
AC adapter replacement plugs
Based on the country or region you're in, your Cisco Wireless Phone 9821 includes one of the eight different AC adapter replacement plugs.
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Country or region |
AC adapter replacement plugs |
|---|---|
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Argentina |
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Australia |
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Brazil |
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China |
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European Union |
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India |
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Korea |
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United Kingdom |
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United States |
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Charge the battery with the AC power supply
You can charge your phone using an AC power supply. When charging with the power supply, the battery may take up to 3 hours to fully charge.
The wide connector on the USB cable attaches to the phone magnetically to hold it securely in place. It has pins that must be aligned correctly. When holding the phone with the screen facing you, the battery icon on the connector will be visible.
| 1 |
Plug the wide connector of the USB cable into the charging port of the phone with the pins aligned. If you hold the phone so that the screen is towards you, the battery icon on the connector is visible. |
| 2 |
Plug the other end of the USB cable into the power adapter. |
| 3 |
Plug the power adapter into the electrical outlet. |
Charge the battery with your computer
You can charge your phone using your computer. When charging with the computer, the battery may take up to 6 hours to fully charge.
The wide connector on the USB cable attaches to the phone magnetically to hold it securely in place. It has pins that must be aligned correctly. When holding the phone with the screen facing you, the battery icon on the connector will be visible.
| 1 |
Plug the wide connector of the USB cable into the charging port of the phone with the pins aligned. If you hold the phone so that the screen is towards you, the battery icon on the connector is visible. |
| 2 |
Plug the other end of the USB cable into the USB port in the computer. |
What to do next
To charge a Cisco Wireless Phone 9821 with a spare battery at the same time, see Desktop charger.
To charge up to six Cisco Wireless Phone 9821 with six spare batteries at the same time, see Multicharger.
