Jetta JETBOOK 9060, Manual

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Power problems
Your computer receives power through the AC adapter or from the main battery.
Power problems are interrelated. For example, a faulty AC adapter or power cable
will neither power the computer nor recharge the main battery.
Here are some typical problems and how to solve them:
The AC power light does not come on when you plug in the AC adapter and
power cable.
Make sure the AC adapter and power cable are finely plugged into both a working
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 adapter and power cable work correctly, but the battery will not
charge.
The battery doesn't charge while the computer is consuming full power. Try
turning off the computer.
The main battery may not be inserted correctly in the computer. Turn off the
computer, remove the battery, clean the contacts with a soft dry cloth (if necessary)
and replace the battery.
The battery may be too hot or too cold to charge properly. Its temperature needs
to be in the range 5 degrees to 50 degrees Centigrade. If you think this is the
probable cause, let the battery reach room temperature and try again.
If the battery has completely discharged, it will not begin charging immediately.
Leave the AC adapter and power cable connected, wait 20 minutes and see
whether 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. Try replacing it.