Cisco Systems DPQ3212 How Do I Maintain the Battery?, Charging the Batteries

How Do I Maintain the Battery?

How Do I Maintain the Battery?

Your modem includes a rechargeable Lithium-Ion battery to provide stand-by operation in the event of an AC power failure. You can replace the battery without the use of any tools.

WARNING:

Fully charged high-capacity rechargeable batteries should be handled with care. Replace only with the battery recommended by the manufacturer. Do not disassemble it or attempt to recharge the battery outside the system. Do not crush, puncture, dispose of in a fire, short the external contacts, or expose to high temperature or immerse in water or other liquids. Dispose of the battery in accordance with local regulations and instructions from your service provider.

Charging the Batteries

The battery begins to charge automatically as soon as you attach the modem to the AC electrical outlet. When you first plug in the modem, the POWER LED status indicator illuminates.

Important: It may take as long as 24 hours for the battery to charge fully.

Using the Modem Without a Battery

If you want, you can use the modem without a battery. If you need to remove the battery, follow the procedures found in Removing and Replacing the Battery (on page 38).

Important: If you choose to operate your modem without a battery, you risk losing your telephone service during a power outage.

Replacing the Batteries

Under normal circumstances, the battery should last for several years. The BATTERY LED status indicator turns off to indicate that the battery should be replaced soon. Contact your service provider to obtain replacement batteries and for disposal instructions.

Note: Follow the steps found in Removing and Replacing the Battery (on page 38) to remove and replace the battery.

4019777 Rev B 37