Dell Inspiron 3800 User Manual
Page 32
Back to Contents Page
Power Sources: Dell™ Inspiron™ 3800 System Reference
AC Adapter
Using the AC Adapter
The AC adapter converts AC power to the DC power required by the computer. The AC adapter kit includes two cables: the AC adapter cable and
an AC power cable.
You can connect the AC adapter with your computer either turned on or off.
The AC adapter works with electrical outlets worldwide. However, power connectors vary among countries. Before you use AC power in a foreign
country, you may need to obtain a new power cable designed for use in that country.
If the computer is docked to an advanced port replicator (APR), you can connect the AC adapter either to the computer or to the APR.
Connecting the AC Adapter
To connect the AC adapter, perform the following steps:
1. Connect the AC adapter power cable to the AC adapter (see
2. Plug the AC adapter power cable into an electrical outlet.
3. Plug the AC adapter cable into the AC adapter connector on the computer.
Figure 1. Connecting the AC Adapter
Turning the Computer On
To turn on the computer, press the power button.
Batteries
Your computer
’s battery provides power when an electrical outlet is not available. A battery in the battery bay is standard with the computer.
Lithium-ion and nickel-metal hydride (NiMH) batteries are longer lived than conventional batteries and do not require replacement as often. To
double battery life, install a second battery in the media bay. Lithium-ion batteries do not have the "memory effect" that is exhibited by NiMH and
nickel-cadmium (NiCad) batteries. You do not need to drain a lithium-ion battery completely before recharging it. A lithium-ion battery will not
"forget" at which point it is fully charged. NiMH and NiCad batteries may not charge fully if they are partially drained and then recharged.
NOTE: If you are running your computer on AC power with a battery installed, the AC adapter charges the battery (if
needed) and then maintains the battery's charge.
NOTICE: The AC adapter should be in a ventilated area, such as on a desk top 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.
1 AC adapter power cable
2 AC adapter
3 AC adapter cable
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 5 seconds to shut it off.