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Operating on battery power
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Optimizing battery life
Optimizing battery life helps you get the most out of battery opera-
tion, prolonging the charge/recharge cycle and improving recharging
efficiency. You are advised to follow the suggestions set out below:
• Purchase an extra battery pack.
• Use AC power whenever possible, reserving your battery for on-
the-go use.
• Eject a PC card if it is not being used, as it will continue to draw
power.
• Store the battery pack in a cool, dry place. The recommended
temperature is 10°C to 30°C. Higher temperatures cause the
battery to self-discharge faster.
• Excessive recharging decreases the battery life.
• Look after your AC adapter and battery.
Battery-low warning
When using battery power pay attention to the Windows Power
Meter.
Warning: Connect the AC adapter as soon as possible after
the battery-low warning appears. Data will be lost if the
battery to become fully depleted and the computer shuts
down.
When the battery-low warning appears, the recommended course of
action depends on your situation:
Situation Recommended Action
The AC adapter
and a power
outlet are
available.
1. Plug the AC adapter into the computer, and then
connect to the mains power supply.
2. Save all necessary files.
3. Resume work.
Turn off the computer if you want to recharge the
battery rapidly.