Toshiba Z930-S9311 User Manual

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If Something Goes Wrong
Power and the batteries
Power and the batteries
Your computer receives its power through the AC adaptor and 
power cord/cable or from the system batteries (battery and 
real-time clock (RTC) battery). Power problems are interrelated. 
For example, a faulty AC adaptor or power cord/cable will neither 
power the computer nor recharge the batteries.
Here are some typical problems and how to solve them:
The AC power light does not come on when you plug in the 
AC adaptor and power cord/cable.
Make sure the AC adaptor and power cord/cable are firmly plugged 
into both the wall outlet and the computer.
If the AC power light still does not come on, check that the wall 
outlet is working properly by plugging in a lamp or other appliance.
The AC adaptor and power cord/cable work correctly, but the 
battery will not charge.
The battery does not charge while the computer is consuming full 
power. Try turning off the computer.
If the battery has completely discharged, it will not begin charging 
immediately. Leave the AC adaptor and power cord/cable 
connected, wait 20 minutes and see if the battery is charging.
If the battery light is glowing after 20 minutes, let the computer 
continue charging the battery for at least another 20 minutes before 
you turn on the computer.
If the battery light does not glow after 20 minutes, the battery may 
have reached the end of its useful life.
The battery appears not to power the computer for as long as 
it usually does.
If you frequently repeat shallow charge and discharge, the battery 
meter may become inaccurate. Let the battery discharge 
completely, then try charging it again.
Check the power options via your Power Plans (see 
). Have you added a device, such as a memory module, 
that takes its power from the battery? Is your software using the 
internal storage drive more? Is the display power set to turn off 
automatically? Was the battery fully charged to begin with? All 
these conditions affect how long the charge lasts.
After a period of time, the battery will lose its ability to perform at 
maximum capacity and will need to be replaced. This is normal for 
all batteries.