Compal Smart Battery on Windows 7 x64

The Smart Battery installation only support Windows XP 32 bit, Windows Vista 32 and 64 bit only. At this writing, Windows 7 is not supported yet (I confirmed for 64 bit version is not supported).

Smart Battery hardware can be identified by ACPI\CPL0002 (Compal Embedded System) id. The latest driver is version

First, install the Smart Battery software. After the installation, the driver for the above hardware is still unknown.

Next, open Device Manager and locate the hardware and choose to update the driver. Do not use automatically search for driver, instead browse the driver at My Computer. Select C:\ProgramData\Vista64 for the driver location. Subtitutes C: with your SystemDrive and the Smart Battery can work under Windows 7.

If you’re using the 32 bit version of Windows 7, The Smart Battery driver is located at C:\ProgramData\Vista32.

Update Aug 12, 2013:
Tested working on Windows 8 x64.


, ,

  1. #1 by j0n3s on September 15, 2009 - 12:33 pm

    Big ThanX,

    worked for me

  2. #2 by ReDaLeRt on September 25, 2009 - 9:02 pm


    Compal Smart Battery runs perfectly on Windows 7 64 bit?

    I Cant understand if this tutorial is for Vista 64bit or Windows 7 64 bit.

    Thank you!

    • #3 by ReDaLeRt on September 25, 2009 - 11:18 pm

      I did follow your tutorial on win7 x64 and it works!

      Thank you man! 😀

  3. #4 by Kono on October 23, 2009 - 11:36 pm

    Subject: Smart Battery and ! icon in Device Manager

    Your solution is works !

    ThX ; ]

  4. #5 by Netwave on October 27, 2009 - 9:58 pm

    We have been looking for this solution for near 9 months THANK YOU SO MUCH

  5. #6 by Ken on November 3, 2009 - 3:41 pm

    Amazing! Tried to download 3 different versions of SmartBattery, tried to install a generic windows ACPI driver, tried everything. And the solution is THAT simple. Thank you so much!

  6. #7 by nosekefik on November 12, 2009 - 8:45 am

    Thanks!! This works perectly!!!

  7. #8 by Rick on November 22, 2009 - 4:14 am

    It works in compal jfw01.
    Thanks a lot!

  8. #9 by jonas on December 12, 2009 - 7:27 am

    BTW wireless select switch also works on windows 7 32 and 64bits.
    You must install version , and it work on ifl90

  9. #10 by Stolas on January 1, 2010 - 10:04 pm

    Thanks !!! It works with my Compal IFL90.

  10. #11 by noactive on January 11, 2010 - 9:52 pm

    Compal Smart Battery on Windows 7 x64 .Thanks for nice post.I added to my twitter.

  11. #12 by nuficek on February 15, 2010 - 6:40 am

    Many wakeful nights and solution is so simple. Thanks a lot :o)

  12. #13 by Joe on March 5, 2010 - 6:13 pm


    on my computer there is no such folder after I have installed the Driver. In the Device Manager one device is shown with an exclamation mark (ACPI\CPL0002 (Compal Embedded System)) and it says the driver has to be re-installed.
    But when I do so the assistant says that the driver has already been installed! What is this?
    On the other hand I already can enter Smart Battery via the Control Panel!

    • #14 by tohenk on March 5, 2010 - 7:57 pm

      Try to remove the device in the Device Manager, then reinstall the Smart Battery software. The lastest driver can be found at

      • #15 by Joe on March 6, 2010 - 7:08 am

        Thanks for your quick reply! I am afraid your method does not work for me, that’s what I did:
        1) Uninstall the device in the Device Manager.
        2) Ran the setup file. It said it would uninstall the Smart Battery software, which was fine, so I continued and rebooted.
        3) The Smart Battery icon in the Control Panel was gone but the unknown device had reappeared in the Device Manager. I uninstalled it once more.
        4) Ran the setup file, installed Smart Battery and rebooted.

        – The Smart Battery icon is back in the Control Panel.
        – The unknown device is back to the Device Manager.
        – I still can’t find any “Vista64” folder.

        Have you got any further ideas so far? I want to re-install Windows anyway but I would be happy if I could eliminate all unknown devices from the beginning this time!

  13. #16 by tohenk on March 6, 2010 - 8:50 pm

    The driver should be located at your SystemDrive:\ProgramData\Vista64, but if you can’t, you can pick the driver from

    • #17 by Joe on March 6, 2010 - 9:22 pm

      Thanks a lot for your help!
      I downloaded your file and chose the folder when I was trying to update the driver. But it always tells me that the optimal driver is already installed which doesn’t prevent the system from setting an exclamation mark.
      Maybe it will work after re-installing Windows…

    • #18 by clode on February 3, 2013 - 6:53 am

      sou brasileiro, e quero agradeçer pelo driver, deu certo. obrigado.
      thankou very very.

    • #19 by alextms on April 16, 2014 - 8:36 pm

      Thanks a lot!!! It’s works fine for me on a Compal PBL21 with Windows 8.1 x64

  14. #20 by Bandu40 on April 5, 2010 - 10:25 pm

    Thanks lot for ur help
    It works..

  15. #21 by Joe on April 7, 2010 - 12:41 am


    I don’t know why but after reinstalling Windows the folders were available… All drivers installed, great! Thank you once again!

  16. #22 by Feelgood on May 3, 2010 - 4:59 pm

    It worked for me…no more not known device in the device manager…sorta made my day.

    Thanks to tohenk for the tip with reinstalling the device…worked perfectly for me.

  17. #23 by Digi on May 18, 2010 - 6:25 am

    You rock…thanks! The was the last hurdle on my Win7 FL90!


  18. #24 by mag on July 8, 2010 - 4:58 am

    does it work on compal KHLB2?

  19. #25 by nexus665 on September 17, 2010 - 7:02 pm

    Hi Toha,

    thanks for re-uploading the latest driver! Works like a charm. That was the only thing that still annoyed me in Win7 x64 – SmartBattery is great for battery life…


  20. #26 by Nobita on October 20, 2010 - 1:09 pm

    I solve this problem by using this tool:

    very effective.

  21. #27 by jd on November 14, 2010 - 5:18 am

    great solution, lots of thanks!!!

  22. #28 by Kolyan512 on March 11, 2011 - 5:31 am

    and copying folder “Smart Battery” from “Program Data” to “Program Files” for Icon activating.

  23. #29 by Tom on March 29, 2011 - 11:44 pm

    driver installation worked fine on my win7 x64. i also installed the utility but i dont know how to open the util??? in which folder is the executable located?

  24. #30 by Robson on April 7, 2011 - 3:31 am

    valeu, funcionou perfeitamente no win7 64 bits

  25. #31 by Tohenbock on May 15, 2011 - 2:35 am

    I am using a Win7 (64 bits) pre-installed Laptop. I installed Smart Battert Driver, but I cannot find the device in Device Manager.
    First, under “Batteries”, there is “Microsoft ACPI-Compliant Control Method Battery”. Is this a device that you refer to ACPI\CPL0002? Or should there be specifically a device recognized as ACPI\CPL0002?

    • #32 by tohenk on May 15, 2011 - 2:45 am

      The device is located under System devices and named COMPAL Embedded System Control.

      • #33 by Eiji Ishikawa on July 17, 2011 - 5:56 am

        How do you do? I’m not good at English,sorry. But I can’t use Smart Battery. Please teach me. I can’t find COMPAL Embedded System Control in device manager / system
        devices. Where can I find it?
        My system is win7 home premium edition(64bit).Machine is dell new inspiron 15r.

  26. #34 by Ei on July 15, 2011 - 6:36 pm

    Hello, I’m Japanese,and not good at English. Please explain simply.
    New question. I can’t find COMPAL Embedded System Control anywhere in device manager.
    What do I do?

    • #35 by tohenk on July 20, 2011 - 9:15 pm

      Does Device Manager shows unknown device? If yes, just look at the hardware id. It should say ACPI\CPL0002.

      • #36 by Eiji Ishikawa on July 21, 2011 - 8:28 pm

        Thanks a lot to your kind and rapid reply. I tried what you said,but unfortunately I can’t find ACPI\CPL0002(COMPAL Embedded System Control) under system devices in device
        manager. I looked for all devices’ hardware id in device manager,but there isn’t.

  27. #37 by tohenk on July 22, 2011 - 11:04 am

    Does your previous operating system (Vista or XP) uses Smart Battery?

  28. #38 by Eiji Ishikawa on July 22, 2011 - 11:13 am

    Thanks you for your rapid reply.
    My PC is new one and pre-installed Win7-64bit home premium edition by DELL.

  29. #39 by tohenk on July 22, 2011 - 11:16 am

    So, may be there’s no COMPAL Embedded System Control in your system.

  30. #40 by Eiji Ishikawa on July 22, 2011 - 11:24 am

    Thank you for your reply. Because I’m a very amatuer, please teach me what to do in Win7 64-bit situation. I am sorry to have caused trouble.

  31. #41 by bubunet on August 16, 2011 - 11:55 am

    Oh for god thank you very much for this immense help after a hero looks 2 days for entire meeting the solution and the link of unload damned unknown devices shit thank you very much you are!!!!!

    pd: from Argentine – Santa fe – San gregorio

  32. #42 by Infoteo on February 20, 2012 - 10:33 am

    Notebook Intelbras i23 / Windows 7, 32 bit / Testado e aprovado!

    Thank you so much Sir “tohenk”!!!!!!!!

  33. #43 by Marcos on September 4, 2012 - 1:05 am

    Perfect! Testado e aprovado no Windows 7 x64. Testarei no Windows 8 brevemente!

  34. #44 by Jeremy Garcia (@jerm1027) on September 14, 2012 - 5:07 am

    i have a Compal KHLB2 (AKA Battalion CZ-10 Ultra), and there wasn’t a Smart Battery utility on Compal’s download site. However, installing the Green Charger II utility did the trick.

  35. #45 by Peter on September 10, 2013 - 8:01 pm

    yeap… it works, thanks a lot! (Compal Cantiga m/b, upgraded from vista32 to w7x64)

  36. #46 by Kajetan on October 31, 2013 - 4:38 pm

    Plik przekopiować z C:\Program Files (x86)\Compal\EMSC-Common-Driver wystarczy vista64 do ProgramData i wtedy aktualizować.

  37. #47 by tio on December 23, 2013 - 1:39 pm

    how about WLAN on Windows 7?

  38. #48 by Jahn Olav Naist Øvernes on January 8, 2014 - 9:41 am

    Finally – THANK YOU – that did the trick in Win7 64-bit.

  39. #49 by Elke Gash on March 20, 2015 - 1:47 pm

    Thanx for sharing.It had been really great looking at regarding your views on this kind of subject.I had been seeking such a article fro some time,and fortunately i found your site.I really hope you will continue to keep helping people in the same way in future also.

  40. #50 by Anonimo on March 7, 2016 - 3:38 am

    Muito obrigado.
    Funcionou corretamente em Windows 10 PRO(x64).

  1. Atualizando Notebook Avell (Compal JFT00) « PereiraTech

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.

%d bloggers like this: