PowerEdge: CMOS Battery Customer Replaceable and Basic Warranty Handling

Warranty

Customers with Basic Warranty contracts must self-purchase and self-replace CMOS batteries for those impacted systems that have been installed longer than 1 year.

See the article How to Replace or Change a CMOS Battery on Your Dell Desktop for instructions on replacing a CMOS battery.

Dell Approved Battery Types

Dell approves the below CMOS battery types for purchase and replacement by customers. Customers can purchase these batteries through a local retailer or through Amazon.

Battery Replacement Handling

Outlined below are helpful reminders and instructions on how to replace CMOS batteries.

IMPORTANT REMINDERS:

• Prepare your PowerEdge (or comparable) system, the system must be shut down to complete the battery replacement.
• Custom BIOS settings for INTEL systems are lost when the battery is removed. These must be reset when the system is back online. **CRITICAL, do not skip**
• Remember to backup the BIOS information prior to shutting the PowerEdge (or comparable) system down. 
• Restore the BIOS information after the system is back online.

Battery Replacement Handling

SolVe procedures are available for this scenario along with PowerEdge (or comparable) Installation, and service manuals are available from the standard product support site. Located below are the generic replacement instructions:

• Complete the BIOS backup (INTEL systems only) - Backup information is found in the product guide: Integrated Dell Remote Access Controller 9 User's Guide.
• Remove the air shroud
  • If applicable, disconnect the power or data cables from the expansion card riser
  • If installed, remove the expansion card risers
  • If installed, remove the PCIe expansion cards
• Locate the battery socket

CAUTION: To avoid damage to the battery connector, you must firmly support the connector while installing or removing the battery.

• Use a plastic scribe to pry out the system battery

• To install a new system battery, hold the battery with the positive side facing and slide it under the securing tabs.
• Press the battery into the connector until it snaps into place

• If applicable, install the low-profile PCIe cards
• If applicable, install the expansion card riser. Connect the power or data cables to the expansions card risers.
• Install an air shroud
• While booting, press F2 to enter the System setup and ensure that the battery is operating properly
• Enter the correct data and time in the System Setup Time and Date fields
• Restore the BIOS settings (if applicable)
• Exit the system setup

Dispose of Battery.

CMOS batteries should be properly disposed of. Reference https://www.epa.gov/recycle/used-household-batteries for local recycling and disposing of these button batteries properly. 

Place electrical or masking tape over the '+' terminal to prevent accidental contact, which could short-circuit the battery and cause a fire.