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NVRAM backup battery
Replacing the NVRAM backup battery
Prerequisites
WARNING: 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 came with the product.
1. Ensure that you read the Safety instructions.
2. Follow the procedure listed in Before working inside your system.
3. Remove the following:
a. hard drives/SSDs
b. cooling shroud
c. hard-drive/SSD backplane
d. hard-drive/SSD cage
e. PCIe mezzanine card
f. NDC
g. IDSDM/rSPI card
h. system board
Steps
1. Locate the system battery on the system.
2. To remove the battery, press down firmly on the positive side of the connector and lift the battery
out of the securing tabs at the negative side of the connector.
3. To install a new system battery:
a. Support the battery connector by pressing down firmly on the positive side of the connector.
b. Hold the battery with the "+" facing up and slide it under the securing tabs at the positive side of
the connector.
4. Press the battery straight down into the connector until it snaps into place.
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