Dell Precision M20 Dell€Precision€Mobile€Worksta - Page 14

Removing a Battery, Installing a Battery, Storing a Battery

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NOTE: The AC adapter charges a completely discharged battery in approximately 1 hour with the computer turned off. Charge time is longer with the computer turned on. You can leave the battery in the computer as long as you like. The battery's internal circuitry prevents the battery from overcharging. When you connect the computer to an electrical outlet or install a battery while the computer is connected to an electrical outlet, the computer checks the battery charge and temperature. If necessary, the AC adapter then charges the battery and maintains the battery charge. If the battery is hot from being used in your computer or being in a hot environment, the battery may not charge when you connect the computer to an electrical outlet. The battery is too hot to start charging if the light flashes alternately green and orange. Disconnect the computer from the electrical outlet and allow the computer and the battery to cool to room temperature. Then connect the computer to an electrical outlet to continue charging the battery. For more information about resolving problems with a battery, see "Power Problems." Removing a Battery CAUTION: Before performing these procedures, disconnect the modem from the telephone wall jack. NOTICE: If you choose to replace the battery with the computer in standby mode, you have up to 1 minute to complete the battery replacement before the computer shuts down and loses any unsaved data. 1. Ensure that the computer is turned off, suspended in a power management mode, or connected to an electrical outlet. 2. If the computer is connected to a docking device (docked), undock it. See the documentation that came with your docking device for instructions. 3. Slide and hold the battery-bay (or module-bay) latch release on the bottom of the computer, and then remove the battery from the bay. Installing a Battery Slide the battery into the bay until the latch release clicks. Storing a Battery Remove the battery when you store your computer for an extended period of time. A battery discharges during prolonged storage. After a long storage period, recharge the battery fully before you use it. Back to Contents Page

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When you connect the computer to an electrical outlet or install a battery while the computer is connected to an electrical outlet, the computer checks the
battery charge and temperature. If necessary, the AC adapter then charges the battery and maintains the battery charge.
If the battery is hot from being used in your computer or being in a hot environment, the battery may not charge when you connect the computer to an
electrical outlet.
The battery is too hot to start charging if the
light flashes alternately green and orange. Disconnect the computer from the electrical outlet and allow the
computer and the battery to cool to room temperature. Then connect the computer to an electrical outlet to continue charging the battery.
For more information about resolving problems with a battery, see "
Power Problems
."
Removing a Battery
1.
Ensure that the computer is turned off, suspended in a power management mode, or connected to an electrical outlet.
2.
If the computer is connected to a docking device (docked), undock it. See the documentation that came with your docking device for instructions.
3.
Slide and hold the battery-bay (or module-bay) latch release on the bottom of the computer, and then remove the battery from the bay.
Installing a Battery
Slide the battery into the bay until the latch release clicks.
Storing a Battery
Remove the battery when you store your computer for an extended period of time. A battery discharges during prolonged storage. After a long storage period,
recharge the battery
fully before you use it.
Back to Contents Page
NOTE:
The AC adapter charges a completely discharged battery in approximately 1 hour with the computer turned off. Charge time is longer with the
computer turned on. You can leave the battery in the computer as long as you like. The battery's internal circuitry prevents the battery from
overcharging.
CAUTION:
Before performing these procedures, disconnect the modem from the telephone wall jack.
NOTICE:
If you choose to replace the battery with the computer in standby mode, you have up to 1 minute to complete the battery replacement before
the computer shuts down and loses any unsaved data.