Probook 6550b Battery/Charging/AC Adapter Issues

Hi, I am having some trouble with my Probook 6550b and am pretty stumped and just want to inquire to the online community before I confirm my worst fear that I have a problem on the motherboard. I am running Windows 7 Professional 32 bit. I bought this laptop about a month ago second hand and it needed a new battery right off the bat and I knew this going in to the purchase. The laptop would still power on with the AC adapter though and the system seemed to run great other than the battery issue. I purchased a OEM replacement battery and installed the battery on arrival and I booted the computer up and everything looked to be working just like it should, the battery was charging and the icon was there in my tray as proof. I thought I had found the remedy to my situation but I was wrong. The battery had charged to about 50% when I shut the system down and I did not touch it for about 5 days until I came back from a family vacation and when I powered it back up the battery had 50% life left but it was no longer showing as charging in the system tray, yet the AC adapter was plugged in. The icon that I was seeing was a battery level without the plug next to it. I started to reasearch this issue and found many topics online about uninstalling battery drivers in device manager and followed that process quite a few times with no success. The battery was still not charging. I ran the HP battery check utility and everything came back perfect which led me to believe the battery was perfectly fine. A message appeared at the bottom of that window that told me there was no power supply hooked up (even though the adapted is still plugged in). I ended up running the battery all the way down to 5% during the research and experimentation process and now the laptop will not power on when both the battery and the AC adapted are connected. The battery itself will not power the computer back on (I am assuming since there is <5% life left), but it will power on with the AC adapter connected (but the battery cannot be installed). The system tray icon I am receiving is a low battery with a flashing 'X'. I have searched and searched online and have not really been able to come across any other possibilities other than a bad power supply or a bad charging mechanism on the motherboard. Some questions I have: Would a fresh installation of Windows possibly remedy this? (I figure not since the laptop will not start up with both battery and AC plugged in; screams hardware issue to me)Any BIOS settings that I may be overlooking?Could a BIOS update help?Any other Windows settings that I may check?If indeed this is a motherboard issue, where could I find a replacement?Thanks so much ahead of time for any and all responses, hopefully somebody will be able to help me!

EDIT: I install the battery after I startup the laptop with just the AC adapter and that's when I lose the power from the supply and the battery icon shows loe battery with a flashing red X. So basically when the battery is plugged in the computer disregards the power supply totally.

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Hi!
I just bought a new MacBook (2.0 GHz, 160 GB). I have two quick questions:
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See the following:
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Hi E57,
Thank you for your inquiry.
I am glad you were able to resolve your issue from another thread.
I do not know how to meddle with the autoshut down fearture, but here is a document that may assist you to reduce the overheating issues. Troubleshooting an Overheating and Auto Shutdown Issue.
I hope this has helped.
Sparkles1
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping!

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First computer was a 1980 Commodore 64 from Radio Shack/ GEnie SFRT member from 1993-1996

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First computer was a 1980 Commodore 64 from Radio Shack/ GEnie SFRT member from 1993-1996

Probook 6550b Battery/Charging/AC Adapter Issues

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