HP ProBook 4520s HP ProBook 4520s Notebook PC and HP ProBook 4720s Notebook PC - Page 58

Battery, Turn the computer upside-down on a flat surface with the battery bay toward you.

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Battery Description 8-cell, 73-Wh, 2.55-Ah Li-on battery for use in computers with 17.3-in displays 6-cell, 47-Wh, 2.2-Ah Li-on battery for use in computers with 15.6-in displays 6-cell, 93-Wh, 2.8-Ah Li-on battery for use in computers with 15.6-in displays Spare part number 593576-001 593572-001 593573-001 Before disassembling the computer, follow these steps: 1. Shut down the computer. If you are unsure whether the computer is off 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 first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. Remove the battery: 1. Turn the computer upside-down on a flat surface with the battery bay toward you. 2. Slide the battery release latches (1) to release the battery. 3. Remove the battery (2) from the computer. Install the battery by inserting it into the battery bay until you hear a click. 50 Chapter 4 Removal and replacement procedures

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Battery
Description
Spare part number
8-cell, 73-Wh, 2.55-Ah Li-on battery for use in computers with 17.3-in displays
593576-001
6-cell, 47-Wh, 2.2-Ah Li-on battery for use in computers with 15.6-in displays
593572-001
6-cell, 93-Wh, 2.8-Ah Li-on battery for use in computers with 15.6-in displays
593573-001
Before disassembling the computer, follow these steps:
1.
Shut down the computer. If you are unsure whether the computer is off 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 first unplugging the power cord from the AC outlet
and then unplugging the AC adapter from the computer.
Remove the battery:
1.
Turn the computer upside-down on a flat surface with the battery bay toward you.
2.
Slide the battery release latches
(1)
to release the battery.
3.
Remove the battery
(2)
from the computer.
Install the battery by inserting it into the battery bay until you hear a click.
50
Chapter 4
Removal and replacement procedures