Maintenance and Service Guide

Battery
Table 6-1 Battery description and part number
Description Spare part number
4 cell 70 Whr 4.55 Ahr LI SR04070XL-PL 917724-855
3 cell 52 Whr 4.55 Ahr LI SR03052XL-PL L08855-855
Before removing the battery, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is o or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by rst unplugging the power cord from the AC outlet, and
then unplugging the AC adapter from the computer.
4. Remove the base enclosure (see Base enclosure on page 34).
Remove the battery:
1. Remove the four Phillip 6 mm screws (1).
2. Lift the battery (2) and then pull the battery (3) forward to remove the battery from the computer.
Reverse this procedure to install the battery.
Component replacement procedures 45