XPS 16 9640 Owner's Manual

Rechargeable Li-ion battery precautions

WARNING:

Exercise caution when handling rechargeable Li-ion batteries.
Discharge the battery completely before removing it. Disconnect the AC power adapter from the computer 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.
To prevent accidental puncture or damage to the battery and other components, ensure that no screws are lost or misplaced during the servicing of the computer.
Always purchase genuine batteries from Dell Site 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 rechargeable Li-ion batteries, see Handling swollen rechargeable Li-ion batteries.