Charging The Battery - Dell Inspiron 7500 System Reference Manual

2. Shut down the computer.
3. Close the display and turn the computer over.
4. Remove the main battery (see Figure 2).
Press the latch lock toward the back of the computer and slide the latch release away from the battery. Hold the latch release with one hand
and pull the battery out of the MegaBay.
Figure 2. Battery Removal
1 Latch lock (unlocked position)
2 Battery
3 Latch release
5. Install the new battery.
Make sure the bezel on the battery is in the correct position by sliding it into place. Slide the new battery into the MegaBay until you hear it
click into place. Move the latch lock back to the locked position.
6. Turn on the computer.
Removing and Installing a Second Battery
1. Save any open files.
2. Shut down the computer.
3. Close the display and turn the computer over.
4. Remove the combo module.
Push the latch lock toward the back of the computer, and slide the latch release away from the media bay. Hold the latch release with one
hand and pull the device out of the bay.
5. Install a second battery.
Make sure the bezel on the battery is in the correct position by sliding it into place. Slide the second battery into the media bay. Move the
latch lock back to the locked position
6. Turn on the computer.

Charging the Battery

Each time you connect the computer to AC power or install a battery in a computer that is connected to AC power, the computer checks the
battery's charge and temperature. The AC adapter charges the battery (if necessary) and maintains the battery's charge.
The AC adapter needs from 2 to 3.5 hours (depending on whether the system is on or off) to fully charge a battery that has been completely
discharged. If two batteries are installed in the computer, the AC adapter charges the main battery first, then the second battery. (The second
battery is discharged first.)
NOTE: You can leave the battery in the computer as long as you like. The battery's built-in circuitry prevents the battery from
overcharging.
For maximum battery performance, charge the battery only at normal room temperature. To charge the battery, perform the following steps:
.