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Dying CMOS battery blamed for laptop clock drift and sleep failures

Original: Laptop has been behaving oddly of late. Massive clock drift and unable to suspend/resume. Turns out both rely on the lit

A laptop owner traced two stubborn problems, large clock drift and broken suspend/resume, to an empty CR2016 CMOS battery on the motherboard. After replacing it, using a battery tab spot welder to attach nickel tabs to the new cell, both issues reportedly disappeared. The post is being shared as a handy troubleshooting tip for similar laptop faults.

Why now: It is a practical, surprising fix that many laptop owners with similar symptoms can use.

CR2016 CMOS battery

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Evidence

• Laptop has been behaving oddly of late. Massive clock drift and unable to suspend/resume. Turns out both rely on the little CR2016 "CMOS" battery, which was empty. No problem, especially if you have a battery tab spot welder and can just pry the nickel tabs off the old and weld… · yngmar@social.tchncs.de · 3

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