Cisco Systems DPC3208, EPC3208 manual Battery Maintenance, Charging the Battery

Battery Maintenance

Battery Maintenance

If your cable modem contains a battery backup feature, a Lithium-Ion battery provides 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 Battery

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

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

Removing and Replacing the Battery

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.

Follow these steps to remove and replace the battery. You can remove and replace the battery without disconnecting the AC power source.

1Turn the cable modem so that you are facing the side with the battery compartment.

2Gently release the latch to open the battery cover and gain access to the battery compartment.

3Grasp the plastic strip on the front of the battery and gently slide the battery forward to remove it from the battery compartment.

4027620 Rev A 29