22
Battery Power
Battery Status
Charging
Fully-charged
Battery charge is low (the charge is less than approx. 9% ca-
pacity)
Battery pack or charger may not be working properly.
Quickly remove the battery pack and disconnect the AC adap-
tor, then connect them again. If the problem persists, contact
your technical support office.
Battery cannot be recharged because the internal tempera-
ture of the battery pack is outside of the acceptable tempera-
ture range for recharging. Once the allowable range require-
ment is satisfied, charging begins automatically.
Battery pack is not connected or charging not being performed.
Use the Battery Indicator to Check the Battery Status
Battery Indicator
Orange*
Green*
Red
Blinking red*
Blinking orange*
Not lit
* When the AC adaptor is connected.
This computer prevents overcharging of the battery by recharging only when the
remaining power is less than approx. 95% of capacity after the battery is fully
charged.
NOTE
Check the Remaining Battery Power
There are two methods to check the remaining battery power.
Press Fn + F9 (After logging on to Windows)
Check the battery indicator (When the power is off or in standby/hibernation mode)
The actual remaining battery capacity and the displayed indication may differ.
To correct this, perform the “Refresh Battery” utility. (
page 24
)
• The battery indicator light remains red.
• The battery remaining displays 99% and the indicator light is orange for a
long period of time.
• Low battery warning appears after a short period of time.
This may be caused by the use of standby mode for long periods of time. The
battery is discharging while the computer is in standby mode when the AC
adaptor is not connected.
There may be a discrepancy with the % value that is displayed on the taskbar
of Windows, but this is not a malfunction.
NOTE
Fn + F9
When the battery pack is inserted in the com-
puter (example)
When the battery pack is not inserted in the
computer
Press
Fn + F9
to Check the Remaining Battery Power
on the Screen
(After logging on to Windows)