Battery; Lithium-Ion Battery Precautions; Removing The Battery - Dell Alienware m17 R3 Service Manual

Battery

Lithium-ion battery precautions

CAUTION:
• Exercise caution when handling Lithium-ion batteries.
• 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

Removing the battery

Prerequisites
1. Follow the procedure in
2. Remove the base cover.
About this task
CAUTION: This computer is designed without an RTC coin cell-battery. After the battery is disconnected or when the
battery is fully discharged, an RTC reset cycle will occur when you restart the computer. 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.
CAUTION: Disconnecting the battery cable resets the BIOS setup program's settings to default. It is recommended that
you note the BIOS setup program's settings before removing/disconnecting the battery.
The following image indicates the location of the battery and provides a visual representation of the removal procedure.
www.dell.com
Before working inside your
or authorized Dell partners and resellers.
computer.
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