The CMOS battery isn't something you'll need to change often. But when it goes, it's time for a quick swap.
XDA Developers on MSN
A dead CMOS battery made my PC act haunted for a week before I worked out what was wrong
My home server kept forgetting its settings, and the cause was a tiny watch battery ...
We may receive a commission on purchases made from links. A CMOS battery, short for complementary metal-oxide-semiconductor, is a round, flat battery connected to a computer's motherboard; it usually ...
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