Operation Manual

1 Removable battery
You can use the computer with battery power whenever ac power is unavailable.
2 Docking-station connector
You can connect the computer to a supported docking station to extend the computer capabilities.
3 Speakers
Your computer is equipped with a pair of stereo speakers.
4 Built-in rechargeable battery or battery filler
Your computer is equipped with a built-in rechargeable battery or battery filler. The built-in rechargeable
battery enables you to use the computer with battery power whenever ac power is unavailable.
5 Emergency-reset hole
If the computer stops responding and you cannot turn it off by pressing the power button, remove the ac
power adapter first. Then insert a straightened paper clip into the emergency-reset hole to reset the
computer.
Status indicators
This topic provides information about locating and identifying the various status indicators on your computer.
Note: Depending on the model, your computer might look different from the following illustrations.
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T570 and P51s User Guide