Dell Precision M6600 (Mid 2011) - Manuel (Page 12)

shut down your operating system, press and hold the power button for
about 4 seconds to turn them off.
After Working Inside Your Computer
After you complete any replacement procedure, ensure you connect any
external devices, cards, and cables before turning on your computer.
PRÉCAUTION: To avoid damage to the computer, use only the battery designed for
this particular Dell computer. Do not use batteries designed for other Dell
computers.
1. Connect any external devices, such as a port replicator, battery slice, or
media base, and replace any cards, such as an ExpressCard.
2. Connect any telephone or network cables to your computer.
PRÉCAUTION: To connect a network cable, first plug the cable into the network
device and then plug it into the computer.
3. Replace the battery.
4. Connect your computer and all attached devices to their electrical outlets.
5. Turn on your computer.
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