Question about Acer Aspire 3050-1733 Notebook

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Acer 3050 battery doesn't charge and causes CPU to run at 90%

My daughters ACER 3050 suddenly started running the CPU at 90-100% all the time. It was slow to boot up or reboot, the keyboard responded VERY slowly, and basically the computer was useless. The only processes taking lots of CPU time were System idle and NT Kernel. This is odd because when the System idle said it was at 40%, the CPU said it was at 90%.

TO make it short, I finally pulled the battery after noticing the power management was acting weird, flickering between battery and plug-power. This immediately caused the CPU to drop to below 10%.

Would a BIOS flash help?

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  • JJD82 Feb 21, 2009

    My problem is very similar. The DVD began running very "herky/jerky" and then it became nearly impossible to log. The computer would not shut down unless I disconnected the battery. I took it to Tigerdirect and they said the problems had to do with some files.

    Took it home and it worked the first time but the same problem came back. I decided to try disconnecting the battery and just run off the power adapter. The computer has run just fine since then.

    I contacted Acer and they said I may need to purchase a new battery but they couldn't tell me if the battery was the problem.

    Do you think it's a battery problem or something else.

    Thank you for your help.

  • deviant00 Mar 02, 2009

    While battery is inserted, this Aspire 1640Z is running at 90% CPU. Touchpad and keyboard stops responding properly, but external USB mouse is not affected. Startup and shutdown times are significantly increased.

    This is on a clean Windows XP SP2 and SP3 installs. I've done a number of installs on this laptop today, but so far I've been unable to link the problem to any particular driver og update.

    Removing the battery immediately solves the problem.

  • hoytpr Mar 04, 2009

    Thank-you Jell587. I will try Malware Bytes tonight. I have already tried the latest version of AdAware, and Microsoft's Malware removal tool. Also ran AVG.

    After restoring the computer (Vista Home) to a restore point a month earlier and before the latest Windows Security upgrades, there was some improvement after re-installing all of the available software from ACER, including the ePower Management. This improvement was NOT complete, and the computer would operate for a while then start acting up again. However, the ePower management software still appears to be corrupt. When you first reboot, the battery power-level indicator will show a fully charged battery, until you hover your mouse over it. Then, the computer seems to lose contact with the battery... showing no battery present. I un-installed ePower Management and the computer seemed to work on my account although it still did not detect a battery. It does not seem to work on my daughter's account (both administrator accounts). FWIW, the battery seems to be functional although not nearly like a new battery... maybe has 30 minutes charge left.

    The CPU activity seems to be related to the ability to detect the battery, and battery charge. I believe it is caught in some loop recognizing the battery, but then not recognizing it.


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I contacted Acer about the problem and their solution was to buy a new battery since the computer was not longer under warranty and they really didn't know what was going on! In talking with friends, and checking on-line, the consensus is that laptop batteries don't last more than two years. You can keep them charged, let them run down, recharge them frequently: they still will only last about two years.
I just find it hard to believe that Acer has never heard of this problem, especially when I'm reading similar posts on this site.

Anyway, as deviant00 suggested, I got a new battery on Amazon.com for $56. They offered $30 off if I signed up for their credit card. The final cost was $26. The battery came today and the computer works like a charm. I also followed jell587's advice and scanned the computer with the Malware he suggested:no viruses.

The solution for me was buy another battery; expect it to last for a couple of years.

Thanks for all the help.

Posted on Mar 06, 2009

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My problem was caused by a faulty battery. Disabling the battery in the windows device manager (thus disabling acpi communications with the device) immediately solves the issue.

Replacing the battery also solves the problem.


Posted on Mar 04, 2009

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First thing I would do is download Malware Bytes and run a scan and clean on the system just to make sure the performance problems aren't due to an infection of some sort. Post your results back here.

Posted on Feb 20, 2009

  • John Elliott
    John Elliott Mar 04, 2009

    Based on some of the other posts here I did some searching for any defect that may have been reported regarding the batteries in your model - didn't find anything that would prove it one way or the other. If the machine is clean of malware it obviously shouldn't be taxing the cpu that much.

    You may want to check on any updates for your model in regard to the power saving/ACPI.

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