Dell XPS 17 9720 Service Manual - Page 16

Removing the battery, Always purchase genuine batteries

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● Do not bend the battery. ● Do not use tools of any kind to pry on or against the battery. ● Ensure any screws during the servicing of this product are not lost or misplaced, to prevent accidental puncture or damage to the battery and other system components. ● If the battery gets stuck inside your computer as a result of swelling, do not try to release it as puncturing, bending, or crushing a lithium-ion battery can be dangerous. In such an instance, contact Dell technical support for assistance. See www.dell.com/contactdell. ● Always purchase genuine batteries from www.dell.com or authorized Dell partners and resellers. ● Swollen batteries should not be used and should be replaced and disposed properly. For guidelines on how to handle and replace swollen Lithium-ion batteries, see Handling swollen Lithium-ion batteries. Removing the battery Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. NOTE: Disconnecting the battery cable, removing the battery, or draining the flea power clears the CMOS and resets the BIOS settings on your computer. NOTE: After your computer is reassembled and powered on, it prompts for the Real Time Clock (RTC) reset. When the RTC reset cycle occurs, the computer restarts several times and then an error message is displayed- "Time of day not set". Enter the BIOS when this error appears and set the date and time on your computer to resume normal functionality. About this task The following image indicates the location of the battery and provides a visual representation of the removal procedure. Steps 1. Disconnect the battery cable from the system board. 2. Turn your computer over and press the power button for 5 seconds to drain the flea power. 16 Removing and installing components

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●
Do not bend the battery.
●
Do not use tools of any kind to pry on or against the battery.
●
Ensure any screws during the servicing of this product are not lost or misplaced, to prevent accidental
puncture or damage to the battery and other system components.
●
If the battery gets stuck inside your computer as a result of swelling, do not try to release it as puncturing,
bending, or crushing a lithium-ion battery can be dangerous. In such an instance, contact Dell technical
support for assistance. See
www.dell.com/contactdell
.
●
Always purchase genuine batteries from
www.dell.com
or authorized Dell partners and resellers.
●
Swollen batteries should not be used and should be replaced and disposed properly. For guidelines on how to
handle and replace swollen Lithium-ion batteries, see
Handling swollen Lithium-ion batteries
.
Removing the battery
Prerequisites
1.
Follow the procedure in
Before working inside your computer
.
2.
Remove the
base cover
.
NOTE:
Disconnecting the battery cable, removing the battery, or draining the flea power clears the CMOS and resets
the BIOS settings on your computer.
NOTE:
After your computer is reassembled and powered on, it prompts for the Real Time Clock (RTC) reset. When
the RTC reset cycle occurs, the computer restarts several times and then an error message is displayed– "Time of
day not set". Enter the BIOS when this error appears and set the date and time on your computer to resume normal
functionality.
About this task
The following image indicates the location of the battery and provides a visual representation of the removal procedure.
Steps
1.
Disconnect the battery cable from the system board.
2.
Turn your computer over and press the power button for 5 seconds to drain the flea power.
16
Removing and installing components