- Notes, cautions, and warnings
- Working inside your computer
- Removing and installing components
- Recommended tools
- Screw list
- Left-side cover
- Front cover
- Fan shroud
- Memory modules
- Solid-state drive
- Coin-cell battery
- Wireless card
- Antenna modules
- Graphics card
- Serial and parallel ports expansion card
- Power-supply unit
- Hard drive
- Optical drive
- Optical-drive bezel
- Media-card reader
- Fan and heat-sink assembly
- Processor
- System board
- Drivers and downloads
- System setup
- Troubleshooting
- Getting help and contacting Dell
Inspiron 3891 Service Manual
Removing the coin-cell battery
Prerequisites
- Follow the procedure in Before working inside your computer.
- Remove the left-side cover.
About this task
NOTE Removing the coin-cell battery resets the BIOS setup program's settings to default. It is recommended that you note the BIOS setup program's settings before removing the battery.
NOTE After a service incident where the system board is replaced, or when the coin-cell battery is replaced an RTC reset cycle will occur. When an RTC Reset cycle occurs, the computer turns on and off three times. An "Invalid Configuration" error message is displayed prompting you to enter the BIOS and configure the date and time. The computer starts functioning normally after setting the date and time.
The following image(s) indicate the location of the coin-cell battery and provides a visual representation of the removal procedure.
Steps
- Lay the computer with its left side facing up.
- Using a plastic scribe, push the coin-cell battery securing-clip on the coin-cell battery socket to release the coin-cell battery out of the slot on the system board.
- Lift the coin-cell battery off its slot on the system board.
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