Prerequisites
NOTE:There is a danger of a new battery exploding if it is incorrectly installed. Replace the battery only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer's instructions. See the safety instructions that came with your system for additional information.
CAUTION:Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that are shipped with your product.
Follow the safety guidelines listed in the Safety instructions section.
Follow the procedure listed in the Before working inside your system section:
Turn off the system, including all attached peripherals.
Disconnect the system from the electrical outlet and disconnect the peripherals.
Remove the system cover.
Remove the cooling shroud.
Replacing the NVRAM backup battery:
1. Locate the system battery.
2. Hold the battery and pull it toward the positive side of the battery till the battery disengages from the connector.
3. Lift the battery up and away from the system.
4. To install a new system battery, hold the battery with the "+" sign facing the positive side of the battery connector.
5. Place the battery straight down into the connector and push the positive side of the battery till the battery snaps into place.
Install the cooling shroud.
Follow the procedure listed in the After working inside your system section:
Install the system cover.
Reconnect the peripherals and connect the system to the electrical outlet.
Turn on the attached peripherals and then turn on the system.
Enter System Setup to confirm that the battery is operating properly.
Enter the correct time and date in the System Setup's Time and Date fields.
Exit System Setup.
To test the freshly installed battery, leave the sled disconnected for at least an hour.
Reconnect the sled after an hour has passed.
Enter System Setup and if the time and date are still incorrect, see the Getting help section.
