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Precautions for Battery Pack
WARNING
(ELECTRIC SHOCK)
The battery pack is an extremely delicate products. When installing or removing one, do
not drop it or subject it to strong shocks. If this should happen, do not use that battery
pack in the interest of safely, because there is a risk of electric shock or malfunction.
Discharge
After you charge the battery pack, even if you store it without using it, over about 1 month it will
naturally discharge.
Service life
• The battery pack is a consumption item. After you use it for a long time, its charging capacity
drops.
• Replace the battery after about 300 to 500 charge/discharge cycles.
• When the battery operating time becomes extremely short, the battery has reached the end
of its service life.
To extend the battery operating time
Use the BIOS setup Power menu.
Conditions under which the battery operating time becomes shorter
• Using in cold or hot location
The battery operating time is influenced by the environmental temperature and the battery
operating time can be shorter at low temperature (5°C) then at high temperature (35°C).
Also, high temperatures not only lower the charging efficiency, but are also a cause of battery
pack deterioration.
• When the battery charging capacity drops
When the battery pack has been used for a long time, its charging capacity drops. In this
case, replace it with a new battery pack.
Use the AC adaptor in the following cases
• When using the hard disk or CD-ROM frequently
• When using a LAN or a modem
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