Battery
Description Spare part number
Battery (2-cell, 37 WH, 4.96 AHr, polymer, includes cable) 824536-850
Before removing the battery, follow these steps:
1. Turn o 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 the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the keyboard/top cover (see Keyboard/top cover on page 21).
Remove the battery:
1. Disconnect the battery cable (1) from the system board.
2. Remove the four Phillips PM2.0×3.3 screws (2) that secure the battery to the bottom cover.
3. Remove the battery (3).
Reverse this procedure to install the battery.
WLAN module
Description
Spare part number
Intel dual band AC 72651 802.11 2 × 2 WiFi + Bluetooth 4.2 combo (non-vPRO) 793840-005
26 Chapter 5 Removal and replacement procedures
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