CMOS battery life

Question

Relative to an XPS710 {or any typical PC}:

I'm told the typical life of a CMOS battery may be anywhere from 5-9 years.

IF a computer is powered off most of the time {a spare backup computer}, will the battery last just as long?

Or, is the 5-9 year estimated life of the battery predicated upon the computer being in regular use?

Thanks - james

SR45 · Answer

Mine lasted just about five years with the system being cycled on/off many times a day.. Unknown how long others have had theirs going. Not all that important, since the battery only cost a few bucks to replace.

Edit: One more thing. Some batteries last a long time and some have been known to give out within months

http://bucarotechelp.com/computers/windowsts/97032710.asp

" CMOS (complementary metal oxide semiconductor) is type of chip that consumes very little power; therefore, while the computer is turned off, the battery discharges very slowly. But the battery will totally discharge if you leave your computer turned off for a year or so. Even if you turn your computer on every day, the battery is designed to last only a couple of years. Occasionally a battery will fail prematurely "

Once again, its not difficult to remove or install another one.

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Message Edited by SR45 on 05-24-2007 01:45 PM

LLED DUDE · Answer

CMOS battery None rechargeable so doesn't matter your system on all the time or off all the time, it still can use from 5 to 9 yrs

jc55 · Answer

Thanks LLED DUDE, That's what I was hoping to hear. I didn't want to turn on the PC after a period on non-use, only to discover the CMOS battery had gone dead. james

biznaga · Answer

My old computer 's CMOS battery is still akicking....it was/is 7 years old in April. Message Edited by biznaga on 05-24-2007 10:09 AM

Locked Topics – Desktops General

CMOS battery life

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