Dell XPS 17 (L702X, Early 2011) - Manual (Page 41)

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Using Your XPS Laptop
Disabling Battery Charging
You may be required to disable the battery charging feature while on an airplane flight.
To quickly disable the battery charging feature:
1. Ensure that your computer is turned on.
2. Click Start .
3. In the search box, type Power Options and press <Enter>.
4. In the Power Options window, click Dell Battery Meter.
5. In the Battery Settings window, click Turn off Battery Charging and then click OK.
NOTE: Battery charging can also be disabled in the System Setup (BIOS) utility.