should i replace bios battery?

aqarwaen29 · February 18, 2021

i noticed that my bios has expired,but all else is fine.

it duracell brand and says expires in 2018.

should i replace or keep it,i dont see no point replacing,cuse computer stil running fine without any issues

Tannah · February 18, 2021

If its still working and not bulged, leave it alone. If your worried you can get a voltage tester, and test the voltage its putting out. I think it should be 3.3v DC

CommanderAlex · February 18, 2021

As long as the BIOS is not getting reset back to default specs after unplugging the power cord and draining any residual charge left in the computer system, the battery is fine. If you see any corrosion (I've personally never seen it on a button cell battery in a computer yet), bulging, white powder, or dirty contacts, you should be fine without changing the battery.

4 minutes ago, Tannah said:

If your worried you can get a voltage tester, and test the voltage its putting out. I think it should be 3.3v DC

Do you mean a voltmeter? I'm pretty sure they will provide a false reading as if you check with VDC, the battery will shows close to 3.3V. The battery has to be under a load if you use a voltmeter, unless your referring to a battery tester such as one of these.