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crwdns2944351:0crwdnd2944351:0Dell Latitude E7440 CMOS Battery Replacementcrwdnd2944351:0crwdne2944351:0

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Introduction
If you booted up your laptop and found that it is displaying the incorrect time or date, your CMOS battery likely needs replacing. This easily replaceable part keeps track of time even when the device is powered off.
If your laptop refuses to boot into the operating system following a BIOS update, your hard drive is reported as not found, or the time on your computer’s clock is always wrong after booting up, the battery powering the CMOS may be defective or out of charge. Thankfully, Dell has made replacing this battery on the Latitude E7440 easy. This guide will outline how to remove this battery for replacement.