CMOS battery Status

[KryptonitePH]

Is there a way to check CMOS battery status?

[BeemerBiker]

You laptop has a large internal battery which takes the place of the CMOS type.  Only the older laptops with detachable batteries have those coin type or CMOS batteries.

You can do a battery report

You run the battery report by bringing up the administrator command window and running

powercfg/batteryreport

as shown below


After entering that explorer line you should see something like the following. You will have to click on it as it is long
http://stateson.net/docs/SP4_battery-report.html

Battery should last about 5 years but less for gaming systems. Have you done a battery calibration?

Is there a problem? Have you run UEFI diagnostics?

[KryptonitePH]

Yes I just run the UEFI diagnostics and it said battery condition, but 3 days ago I changed my ram 8gb to 16gb then when I about to power on my laptop it didnt have power for a few seconds then go to a blue screen of CMOS warning. That's why im asking how to check cmos battery status btw my laptop is good now thank you.

[BeemerBiker]

OK, it makes sense now.  You put in new memory and the BIOS reported a problem with the CMOS. 

It is not actually problem, just a warning that the "CMOS" battery backup shows a change in the system.

if this happens again you need to do the "cmos reset".  There are two ways. 

1 - the windows key "V" 

1. Turn off the computer.
2. Press and hold the Windows and the V keys.
3. While still pressing those keys, press and hold down the Power button on the computer for 2-3 seconds.
4. Release all the keys.
5. At the completion of a successful CMOS reset, a message showing CMOS Reset (502) will be displayed.
6. Restart the computer.

If you do not see the message then try:

2 - The 20 second hard reset

• Turn on the computer by holding the power button down for 20 full seconds then release.
• Press the Power button one more time (if necessary) to start the computer.
• Tap the ESC key about once a second after you see the LEDs on the keyboard flash.
• Press F10 to enter bios. Check date and time.  Save settings when exiting

[KryptonitePH]

Thank you Thank you It worked