Dell Inspiron 3700 Reference Manual page 11

Battery Disposal
When your battery no longer holds a charge, call your local waste disposal agency or environmental agency for advice on disposal of the
computer's lithium ion battery.
CAUTION: Do not puncture or incinerate the battery.
NOTES: This computer is supplied with a lithium ion battery, which is significantly less hazardous to the environment than the lithium
metal technology used in some other batteries (such as watch batteries).
Lithium ion batteries are longer lived than conventional batteries and do not require replacement as often. Spent batteries should not be
placed in common household waste products. Contact local authorities for the location of a chemical waste collection program nearest
you. To purchase a new battery,
About Battery Power
You automatically conserve battery power each time you attach the computer to an electrical outlet. The battery is even being recharged when you
use AC power. The battery's life expectancy is largely determined by the number of charges it receives, so use an electrical outlet to run the
computer whenever possible.
You can customize power management by individually controlling the computer's power conservation features. These features reduce power
consumption by monitoring application programs and computer devices for inactivity and slowing down or stopping some of the computer's
internal devices.
NOTES: When you use power conservation features, you often trade some of the performance of the computer for increased battery
operating time. For example, if you turn off the hard-disk drive, you may experience a delay the next time the computer tries to access
the hard-disk drive.
Other power conservation features, such as standby mode, stop almost all system activity. They allow you to maximize power
conservation when your work is interrupted.
Experiment with power conservation features to achieve the optimum power conservation for your work environment.
Turning the Computer On
To turn on the computer, press the power button. (See
NOTE: If your computer's operating system is "locked up"—that is, it does not respond to commands—press and hold down the power
button for at least five seconds to shut it off.
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Figure 1 in "Introduction.")