Charging a Hot Battery
If your battery is hot from being used in your computer or being in a hot environment, take note of the following precautions:
l A hot battery will not charge when you connect the AC adapter to the computer. This safety feature is important because charging a hot
battery shortens the battery’s life span and may damage the battery and the computer.
l If the computer is not allowed to return to room temperature, the battery stops charging before it reaches its full capacity.
Replacing the Battery
To replace a battery in the battery bay, perform the following steps (see Figure 3).
1. If the computer is docked, undock it. (See the documentation that came with your docking device.)
NOTICE: If you choose to replace the battery with the computer in suspend (or standby) mode, you have up to 2 minutes to complete
the battery replacement.
2. Connect the computer to an electrical outlet and then preserve your data by placing the computer in suspend (or standby) mode.
Press <Fn><Esc> (or <Scroll Lock><Esc> on an external keyboard if the External Hot Keyoption is enabled in the system setup program).
3. Remove the battery from the battery bay.
Closethecomputerdisplayandturnthecomputerover.Slidethebatterybaylatchtotheunlockposition(seeFigure 3), causing the battery
to pop up slightly on one side. While keeping the latch in the unlock position, pivot the battery up and out of the bay. Release the latch.
Figure 3. Removing a Battery
4. Position the new battery as shown in Figure 2, and lower the outside edge of the battery into the battery compartment.
Four small tabs on the battery fit into four slots in the side wall of the computer.
5. Press the battery firmly into place, flush with the surrounding surface.
Make sure that the battery latch is completely closed before turning the computer right-side up.
6. If you put the computer into suspend (or standby) mode or S2D mode in step 2, press the power button to resume normal operation.
Battery Charge Gauge
Thebatterychargegauge,locatedonthebatteryandaccessibleontheundersideofthecomputer,consistsoffourindicatorsandatestbutton.
Each indicator represents 25 percent of full charge. If only one indicator lights up, recharge the battery before using it.
To check the charge level, press the battery test button (see Figure 4). The appropriate number of indicators lights up for a few seconds to indicate
the amount of charge remaining in the battery.
Figure 4. Battery Charge Gauge
NOTES: If necessary, print these instructions for reference before proceeding.
Dell recommends that you turn the computer off before replacing the battery.
If you want to replace the battery while the computer is running, you must first connect the computer to an electrical outlet or enter
suspend (or standby) mode or suspend-to-disk (S2D) mode. You cannot replace the battery while the computer is running on battery
power.
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