- Notes, cautions, and warnings
- About this document
- Dell EMC PowerEdge R240 system overview
- Initial system setup and configuration
- Installing and removing system components
- Safety instructions
- Before working inside your system
- After working inside your system
- Recommended tools
- Front bezel
- System cover
- Air shroud
- Cooling fans
- Drives
- Removing a drive blank
- Installing a drive blank
- Removing a hot-swappable drive
- Installing the hot-swappable drive
- Removing the drive from the drive carrier
- Installing the drive into the drive carrier
- Removing a 2.5-inch drive from a 3.5-inch drive adapter
- Installing a 2.5-inch drive into a 3.5-inch drive adapter
- Removing a 3.5-inch drive adapter from a 3.5-inch drive carrier
- Installing a 3.5-inch adapter into a 3.5-inch drive carrier
- Removing a cabled drive
- Installing a cabled drive
- Removing the cabled drive from the drive carrier
- Installing a cabled drive into the drive carrier
- Intrusion switch
- System memory
- Expansion cards and expansion card risers
- M.2 SSD module
- System battery
- Optional internal USB memory key
- Optional optical drive
- Processor and heat sink
- Optional IDSDM or vFlash module
- Drive backplane
- Cable routing
- Power supply unit
- System board
- Trusted Platform Module
- Control panel
- Jumpers and connectors
- System diagnostics and indicator codes
- Getting help
- Documentation resources
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Dell EMC PowerEdge R240 Installation and Service Manual
Replacing the system battery
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 more information.
- Follow the safety guidelines listed in the Safety instructions..
- Follow the procedure listed in the Before working inside your system.
- Remove the air shroud.
Steps
- To remove the battery:
- Push the battery holder clip.
NOTE:Ensure that you do not push the battery holder clip more than 3.2 millimeters, It may damage the battery holder.
- Push the battery toward the positive side of the battery until the battery disengages from the connector.
- Lift the battery away from the system.
Figure 1. Removing system battery 
- Push the battery holder clip.
- To install a new system battery:
- Push the battery lock slightly away.
NOTE:Ensure that you do not push the battery clip more than 3.2 millimeters or you might risk damaging the part.
- Hold the battery with the + sign facing the positive side of the battery connector.
- Insert the battery down into the connector until the battery snaps into place.
Figure 2. Installing system battery 
- Push the battery lock slightly away.
Next steps
- Install the expansion card riser.
- Install the air shroud.
- Follow the procedure listed in the After working inside your system.
- Confirm that the battery is operating properly, by performing the following steps:
- Enter the System Setup, while booting, by pressing F2.
- Enter the correct time and date in the System Setup Time and Date fields.
- Exit the System Setup.
- To test the newly installed battery, remove the system from the enclosure for at least an hour.
- Reinstall the system into the enclosure after an hour.
- Enter the System Setup and if the time and date are still incorrect, see Getting help section.
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