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crwdns2944351:0crwdnd2944351:0HP EliteBook 840 G7 RTC Battery Replacementcrwdnd2944351:0crwdne2944351:0

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Introduction
Use this guide to replace the RTC battery (aka CMOS battery or coin cellclock battery) in your HP EliteBook 840 G7 laptop.
The RTC battery is responsible for powering the system’s clock and retains BIOS settings when the computer is turned off. If your computer loses track of time or resets BIOS settings, the RTC battery may need to be replaced.
Still under warranty? [link|https://support.hp.com/us-en/check-warranty|Contact HP] to learn your warranty status, receive a repair under warranty if eligible, or for further warranty information.