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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, Power and Power-Up Modes, 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.