Battery; Lithium-Ion Battery Precautions; Removing The Battery; Installing The Battery - Dell Precision 7520 Owner's 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

1. Follow the procedure in
2. Remove the battery cover.
3. To remove battery:
a. Slide the release latch towards from the unlock icon to unlock the battery[1].
b. Lift and remove the battery from the computer [2].

Installing the battery

1. Slide the battery into its slot until it clicks into place.
Before working inside your
www.dell.com or authorized Dell partners and resellers.
computer.
Disassembly and reassembly 11