HP ProBook 4420s HP ProBook 4320s, 4321s, 4420s, and 4421s Notebook PCs - Mai - Page 57

Battery, Slide the battery release latches

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Battery Description Battery 9-cell, 93-Wh (2.8Ah) Li-ion 6-cell, 47-Wh (2.2Ah) Li-ion Spare part number 593573-001 593572-001 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. Component replacement procedures 49

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Battery
Description
Spare part number
Battery
9-cell, 93-Wh (2.8Ah) Li-ion
593573-001
6-cell, 47-Wh (2.2Ah) Li-ion
593572-001
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.
Component replacement procedures
49