Operating on battery power38
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Charging the battery
To charge the battery, first make sure that it is correctly installed in the
battery bay. Plug the AC adapter into the computer, and connect to a
mains power outlet. You can continue to operate your computer on AC
power while your battery is charging. However, charging the battery
with the computer turned off results in a significantly faster charge
time.
Note: You are advised to charge the battery before retiring for
the day. Allowing the battery to charge overnight before
traveling enables you to start the next day with a fully charged
battery.
Checking the battery level
The Windows Power Meter indicates the current battery level. Rest the
cursor over the battery/power icon on the task bar to see the battery's
present charge level.
Optimizing battery life
Optimizing battery life helps you get the most out of battery
operation, 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. See, "Taking care of your
AC adapter".
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