HP EliteBook 820 G2 Notebook PC and HP EliteBook 720 G2 Notebook PC - Maintenance and Service Guide

Battery
Description Spare part number
3-cell, 46-WHr, 4.15-AHr, Li-ion battery 717378-001
3-cell, 26-WHr, 2.50-AHr, Li-ion battery 717377-001
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 service cover (see Service cover on page 37).
WARNING! To reduce potential safety issues, use only the battery provided with the computer, a
replacement battery provided by HP, or a compatible battery purchased from HP.
CAUTION: Removing a battery that is the sole power source for the computer can cause loss of information.
To prevent loss of information, save your work or shut down the computer through Windows before removing
the battery.
Remove the battery:
1. Slide the battery lock latches (1) to unlock the battery.
Component replacement procedures 39