Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions

Low Battery warning on Desktop computer

Posted on 2007-11-27
Last Modified: 2013-12-11
For the past week I have been getting Low Battery warnings on my desktop machine. Machine is plugged in to an APC Back-UPS ES 750. There are no error lights on the APC and the machine is otherwise working fine. Do I have a bad power supply? How can I find out?
Question by:elise1114
  • 3
  • 2

Expert Comment

ID: 20360322
A Low battery alarm refers to the CMOS battery on the motherboard itself. This battery is responsible for keeping all your custom BIOS settings and the time on the computer when it's turned off. This battery looks similiar to a watch battery. This is the battery that needs to be replaced.

Expert Comment

ID: 20360333
Or am I misinterpreting the error and you are getting this inside windows.... not when first booting up?

Author Comment

ID: 20360478
I get it in windows and this morning before I logged on, none of these times has been after a restart/shut down though (at least not yet). Could it still be the CMOS batter?

Accepted Solution

Nuttycomputer earned 250 total points
ID: 20383734
Probably not, it's an unusual message for sure in a Desktop system. I would narrow it down a bit. Plug the computer directly in the wall and see if you still get the message if not it could be a problem with the APC

Author Comment

ID: 20384140
I replaced the battery in the APC and it seems to be functioning correctly now.

Thanks much for your help!

Featured Post

Connect further...control easier

With the ATEN CE624, you can now enjoy a high-quality visual experience powered by HDBaseT technology and the convenience of a single Cat6 cable to transmit uncompressed video with zero latency and multi-streaming for dual-view applications where remote access is required.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

This article is a cursory discussion of Intel SpeedStep Technology (SpeedStep) and Enhanced Intel SpeedStep Technology (EIST).  The goal is more to illuminate what these technologies are and are not.  The detail of how each technology works is not a…
This article may be useful for troubleshooting your PC. Power Supply - no lights or fans running If you have no lights or fans running then either you power is bad, turned off (check switch) or the power supply needs to be replaced. That's a r…
The viewer will learn how to successfully download and install the SARDU utility on Windows 8, without downloading adware.
The viewer will learn how to successfully download and install the SARDU utility on Windows 7, without downloading adware.

839 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question