How can I repair the CMOS battery in my computer?

Sanju Meena June 6, 2012
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In my PC one problem is very bad. When I switch on my computer, it does not update my time and date automatically. I think it is a problem of CMOS battery, but I don’t like to replace it with new one. I have to repair it. Can I do this at home or do I have to buy a new battery? Thank you for solving my problem.

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  1. maruthi
    November 8, 2012 at 3:53 am

    good morning sir,
    what is the problem to my pc .i'm getting message from my pc"FATAL ERROR...SYSTEM MESSAGE ERROR" please kindly solve the problem

  2. akkil
    October 26, 2012 at 3:45 pm

    When I plug my PC to the's power button light on for 2 seconds and off it and light on it again
    for 2 seconds and off before I switch on. when I switch on the PC it's BIOS screen says
    "The firmware has detected that a CMOS battery failure occured. press the enter to continue"
    after pressing enter it's says
    "The firmware has detected that a CMOS checksum error the enter to continue"
    after pressing enter again and it's says
    "The firmware has detected that the system date/ time has not been the enter to continue"
    after log on by pressing enter then my date is set as 01/01/2007 and time set as 12.00AM
    there for every time after log on I have to set the correct date and time.
    I changed BIOS as default setting and replace a new CMOS battery and update BIOS . also I reset BIOS jumper but nothing happend.
    then I changed my power supply unit and plugged it to the electricity but result is same.

    how can I solve this? please help me.

  3. anurag joshi
    July 18, 2012 at 12:08 pm

    please tell me how can we change cmos battery.. and is there is any software to regenerate the battery power please tell me

  4. GamE
    June 6, 2012 at 7:05 pm

    replace it by pushing it out with a thin material or some flat screw driver

    • Sanju Meena
      June 7, 2012 at 2:49 am


  5. ha14
    June 6, 2012 at 9:49 am

    there are some soft that reset cmos battery, you can try it if you wish
    CMOS De-Animator
    the result depends on Bios

    by command prompt

  6. Alan Wade
    June 6, 2012 at 9:13 am

    The battery cannot be repaired and the cost of a replacement is hardly anything. Do as Bruce suggests and replace the battery.

    • Sanju Meena
      June 6, 2012 at 9:28 am

      OK! Alan i Thing its Not Possible to Repair it... So I'm Going to Buy New Battery Thanks!

    • Danial Azri
      July 2, 2012 at 3:06 am

      I also have the same problem like this.So i buy a new battery and i've replace the battery. But after i'd replace the battery,my pc wont be able to start.What should i do?

  7. Bruce Epper
    June 6, 2012 at 8:09 am

    Just replace the battery. It is a simple process that anyone can do. Unless it is an extremely old computer that has the battery soldered in (highly unlikely).

    • Sanju Meena
      June 6, 2012 at 9:10 am

      Yeah! But I want to Know Can I Repair It....

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