Rtc Battery - HP Probook 450 G9 Maintenance And Service Manual

Do not cause an external puncture or rupture to the battery. They can cause a short inside the battery,
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which can result in battery thermal runaway.
Do not handle or touch the battery enclosure with sharp objects such as tweezers or pliers, which might
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puncture the battery.
Do not compress or squeeze the battery case with tools or heavy objects stacked on top of the case.
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These actions can apply undue force on the battery.
Do not touch the connectors with any metallic surface or object, such as metal tools, screws, or coins,
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which can cause shorting across the connectors.
Before removing the battery, follow these steps:
1. Prepare the computer for disassembly (see
2. Remove the bottom cover (see
WARNING! To reduce potential safety issues, use only the user-replaceable battery provided with the
computer, a replacement battery provided by HP, or a compatible battery purchased from HP.
IMPORTANT:
information. To prevent loss of information, save your work or shut down the computer through Windows
before you remove the battery.
Remove the battery:
1. Disconnect the battery cable from the system board (1).
2. Remove the six Phillips M2.0 × 4.0 screws (2) that secure the battery to the computer.
3. Remove the battery from the computer (3).
To insert the battery, reverse the removal procedures.

RTC battery

To remove the RTC battery, use this procedure and illustration.
Bottom cover on page
Removing a battery that is the sole power source for the computer can cause loss of
Preparation for disassembly on page
40).
40).
RTC battery 51