Hi,

Take the battery out and see if it knows its running on the mains. If not you will need a motherboard. ( or at least the DC board )

                                                                            Regards Chris

Hi,

It wont be a software issue, take the HDD out and you should get the same results. ( no software )           I would start looking for hardware......... It may also be worth updating the Bios in case it is corrupted, a bit of a long shot though. Is your battery a grey top ?

                                                                         Regards Chris

Thanks for the input, today I brought the latitude with me to work.  I tried another working power supply, no change.  It did not recognize the AC power and indicated it was running on a "0" % charged battery.  Then I borrowed a fully charged battery, installed it and got the exact same response.  It indicated I was running on a low battery and should change batteries or I may lose my work and so on. 

I have tried removing the battery, used the AC adapter and it still indicates it's running on a drained battery.

Could this be software related?

Hello,

Thanks again for the help.  I have a black battery, C3149.  At work the battery I tried was grey, 4600 mAh, I believe.

I have updated the bios a couple days ago, with this update: A16-CPSJ.exe   It did not change anything as far I can tell.

Tonight I removed the hard drive, powered it on and entered setup.  Here's what I found.  I paged to the battery status page.  My battery was in the left slot.  It said the left battery was idle and 0% charge.  The right side battery indicated no battery was installed.  My CD/DVD is in the right side.  So I switched the battery to the right side.  Guess what, it said the exact same thing.  By the way, Power Management is enabled.

Is it time to shop for a main system board?  If it's worth it.  I'm not sure how expensive they are.  I've done my own PC main board several times.  Is a laptop much more difficult?

Thanks,  Jeff

Replacing a laptop MB is quite involved given that you basically have to pull the whole thing apart, and may present a bit of difficulty to someone who hasn't replaced one before. You can find the teardown instructions by searching through the product support tab at the top of this page.

I personally wouldn't find the expense worth it, given that your system wouldn't be under warranty. If, for example, your LCD dies the following week, you'd have wasted your money.