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Portable Device Battery Safety
WARNING: The system battery can only be replaced by an
authorized service provider. Using an incompatible battery
may increase the risk of fire or explosion.
Do not expose (store or place) your computer or battery pack next to
a heat source such as a radiator, fireplace, stove, electric heater, or
other heat-generating appliance or otherwise expose it to
temperatures in excess of 65ºC (149ºF). When heated to excessive
temperatures, battery cells could vent or explode, posing risk of fire.
Earphone and Headphone Safety
WARNING: Excessive sound pressure from earphones or
headphones can cause hearing damage or loss. Adjustment
of the volume control as well as the equalizer to settings
other than the center position may increase the earphones
or headphones output voltage, and therefore the sound
pressure level.
The use of factors influencing the earphones or head-
phones output other than those specified by the manufac-
turer (e.g. operating system, equalizer software, firmware,
driver) may increase the earphones or headphones output
voltage and therefore the sound pressure level.
The use of earphones or headphones other than those
specified by the manufacturer may lead to heightened
sound pressure level.
Ergonomic Instructions
WARNING: Improper or prolonged keyboard use may result
in injury.