User-Installable Features; Lithium Ion Battery - Fujitsu Lifebook E752 User Manual

Chapter 3

User-Installable Features

Lithium ion Battery

Your LIFEBOOK notebook has a Lithium ion battery that provides power for operating your notebook when no external
power source is available. The battery is durable and long lasting, but should not be exposed to extreme
temperatures, high voltages, chemicals or other hazards.
The Lithium ion battery operating time may become shorter if it is used under the following conditions:
• When used at temperatures that exceed a low of 5°C or a high of 35°C. Extreme temperatures not only reduce
charging efficiency, but can also cause battery deterioration. The Battery Charge Indicator on the Status
Indicator panel will flash when you try to charge a battery that is outside its operating temperature range. See
"Battery Charge Indicator" on page 23.
• When using a high current device such as a Multi-Format DVD Writer, Blu-ray RW drive, or the hard drive, using
the AC adapter will conserve your battery life.
D
O NOT LEAVE A FAULTY BATTERY IN YOUR NOTEBOOK
OR YOUR NOTEBOOK ITSELF
. I
T MAY DAMAGE YOUR
. I
T MAY ALSO PREVENT OPERATION OF YOUR NOTEBOOK BY DRAINING ALL AVAILABLE CURRENT INTO THE BAD BATTERY
AC ,
ADAPTER OPTIONAL
59
A /A ,
UTO IRLINE ADAPTER ANOTHER BATTERY
.