Dell XPS 15 9520 Service Manual - Page 16

Removing the battery, support for assistance. See

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● Discharge the battery completely before removing it. Disconnect the AC power adapter from the system and operate the computer solely on battery power-the battery is fully discharged when the computer no longer turns on when the power button is pressed. ● Do not crush, drop, mutilate, or penetrate the battery with foreign objects. ● Do not expose the battery to high temperatures, or disassemble battery packs and cells. ● Do not apply pressure to the surface of the battery. ● 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. About this task To disconnect the battery cable, release the pull tab located under the battery cable and use it to disconnect the battery cable. The following image indicates the location of the battery and provides a visual representation of the removal procedure. 16 Removing and installing components

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●
Discharge the battery completely before removing it. Disconnect the AC power adapter from the system and
operate the computer solely on battery power—the battery is fully discharged when the computer no longer
turns on when the power button is pressed.
●
Do not crush, drop, mutilate, or penetrate the battery with foreign objects.
●
Do not expose the battery to high temperatures, or disassemble battery packs and cells.
●
Do not apply pressure to the surface of the battery.
●
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.
About this task
To disconnect the battery cable, release the pull tab located under the battery cable and use it to disconnect the battery cable.
The following image indicates the location of the battery and provides a visual representation of the removal procedure.
16
Removing and installing components