Apart from incorrect date & time, what are the symptoms of an almost flat CMOS battery?
- 異域秦後人Lv 76 months agoFavorite Answer
NO MORE ABLE TO BOOT UP COMPUTER, OR COMPUTER BECOMES SHOWING NONSENSE ERROR, OR SOME COMPUTER CPU BECOMES SLOWER.
- FulanoLv 76 months ago
The BIOS will start forgetting it's settings, so it will act like it's booting for the first time each time you turn it on. It's not a big deal if your system uses the default BIOS settings anyway, but if you have specifics that need set for it to run at it's best it'll be a pain to have to reset those every time you turn it off.
- JohnLv 76 months ago
Measure it with a voltmeter to see if its ok.
- PhilomelLv 76 months ago
Open your machine and remove and reinstall the battery to wipe the contacts, or just replace the battery.
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- Born YesterdayLv 76 months ago
CMOS (complimentary metal oxide semiconductor)
is a low power consumption field effect transistor
(ignore the above if you're a spell check victim)
Nearly all batteries are Lithium ion.
Many devices require a 3V Lithium
button cell for memory retention.
(BIOS, flash, etc.)
These are not normally charged, and must be replaced
periodically (by soldering with ESD precautions)
Micro USB charging ports become fouled with dust,
lint, and extraneous particulates, and require periodic dusting.
You can't assume your device's power supply is charging because
it's plugged in.
Batteries normally last years, but lost time and date are
symptoms of low battery output. Your device might
have a battery health trouble shooter.
- billrussell42Lv 76 months ago
CMOS is an IC type, it is not a battery.
more details needed.