Dell Inspiron 7500 System Reference Manual page 96

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Power Sources: Dell™ Inspiron™ 7500
AC Adapter
Battery
Removing and Installing the Main Battery
AC Adapter
The AC adapter kit (see Figure 1) includes the AC adapter and an AC power cable.
Figure 1. AC Adapter Kit
1 AC power cable
2 AC adapter
3 AC adapter cable
4 AC adapter connector
If you are running your computer on AC power with a battery installed, the AC adapter charges the battery (if needed) and then maintains its
charge.
NOTICE: The AC adapter should be in a ventilated area, such as on a desktop or on the floor, when used to power the computer or
charge the battery. Do not use the AC adapter in a poorly ventilated environment, such as inside a carrying case.
NOTICE: The AC adapter works with AC power sources worldwide. However, electrical outlets vary between countries. Before
using electrical outlets outside of the U.S., you may need to obtain a power cable designed for use in that country.
NOTICE: The AC adapter is designed to work only with Dell Inspiron portable computers. Do not use adapters from other
computers, and do not attempt to use this adapter with other computers.
Battery
The computer supports up to two lithium ion batteries simultaneously. The main battery is a standard feature and is used in the MegaBay™; an
optional second battery can be installed in the media bay.
Either battery can power the computer by itself. When two batteries are installed, the computer draws power from both of them serially. The lithium
ion battery has a life span of up to 400 full charges when it is charged at normal room temperature.
A number of factors affect battery operating
The power conservation features used
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The number and type of PC Cards used
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The kinds of application programs run
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The capacity of the optional memory modules installed (the higher the capacity, the more power used)
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The use of a CD-ROM or DVD-ROM drive, which uses more power than a hard-disk drive or a diskette drive
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See also "Power Conservation."
Removing and Installing the Main Battery
1. Save any files you have open.
Charging the Battery
Removing and Installing a Second Battery
Checking a Battery's Charge Level
time: