Toshiba PPM78U05L01E User Manual

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8-6
User’s Manual
PORTÉGÉ M780
Battery
If you suspect a problem with the battery, you should check the status of 
the DC IN indicator as well as the Battery indicator. Please refer to 
Chapter 6, 
, for more information on these 
indicators, together with general battery operation.
Problem
Procedure
Battery doesn’t 
power the computer 
The battery may be discharged - connect the AC 
adaptor to recharge the battery.
Battery doesn’t 
charge when the 
AC adaptor is 
attached (Battery 
indicator does not 
glow orange).
If the battery is completely discharged, it will not 
begin charging immediately, in these instances you 
should wait a few minutes before trying again. If the 
battery still does not charge, you should check that 
the power outlet the AC adaptor is connected to is 
supplying power - this can be tested by plugging 
another appliance into it.
Check whether the battery is hot or cold to the 
touch - if so, it will not charge properly and should 
be allowed to reach room temperature before you 
try again.
Unplug the AC adaptor and remove the battery to 
make sure its connecting terminals are clean - if 
necessary wipe them with a soft dry cloth lightly 
dipped in alcohol.
Connect the AC adaptor and replace the battery, 
taking care to ensure that it is securely seated in 
the computer.
Check the Battery indicator - if it does not glow, 
allow the computer to charge the battery for at least 
twenty minutes. If the Battery indicator starts to 
glow after this period, allow the battery to continue 
to charge for at least another twenty minutes 
before turning on the computer. However, if the 
indicator still does not glow, the battery may be at 
the end of its operating life and should be replaced. 
However, if you do not believe the battery is at the 
end of its operating life, you should speak to your 
reseller, dealer or service provider.
Battery doesn’t 
power the computer 
as long as expected
If you frequently recharge a partially charged 
battery, the battery might not charge to its full 
potential - in these instances you should fully 
discharge the battery and then attempt to charge it 
again.
Check the Power saver option under Select a 
power plan
 in the Power Options.