Fujitsu Laptop User Manual page 51

Do not take the battery apart.
Taking the battery apart or touching its internal components could result in an electric shock or
fire.
Electrical discharge
• It is good practice to always recharge the battery before use since it is discharged spontaneously.
• When you know you will not use the computer for a long period of time (for one month or more),
remove the battery pack from your computer and keep it in a cool place. Leaving the battery in
the computer without recharging for a long period of time causes it to be discharged excessively
and shortens its useful life.
Useful life of the battery
• The battery runs down and deteriorates over time even if it is not used. To check the battery
condition, Èherefore, you should run your computer on its internal battery at least once a month.
• Leaving the battery in a hot place causes it to go dead and deteriorate in a short time.
• The battery pack is consumable and its chargeability degrades gradually over time. When the
battery has reached the end of its useful life, replace it with a new one.
• When the battery is approaching the end of its useful life, it goes dead in a very short time.
• When the battery has reached the end of its useful life, remove it from the computer. Leaving it
in the computer could result in an electric shock or fire.
Disposal of the battery pack
• Before disposing of the battery pack, take measures to prevent it from shorting, for example,
sealing its connector with an insulating tape. After removing the internal battery pack, do not
mix it with other batteries.
The internal battery pack (lithium-ion battery) contains precious resources. Therefore, you should
dispose of the disused battery pack as a recyclable material whenever possible.
For the recycling of batteries, see Recycling of batteries. (To see Recycling of batteries, select
Setting up the computer, Appendixes, and Recycling of batteries.)
Battery life
• The energy-saving features of your computer help you conserve battery power.
• Battery life greatly varies according to the ambient temperature. The life of a battery may shorten
when it is used in a cold place.
You should power your computer from the AC adapter when:
• Using a online service or navigating the Internet,
• Using the hard disk or DVD/CD drive frequently,
• Connecting to a LAN,
• Restoring the computer to its original state,
• Connecting two or more external devices, such as PC cards and USB devices, to your computer
at the same time.
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