T500 battery not charging nor providing power to system.
Hello,
I am new to this board and I thank everyone for your time and any recommendations you give me regarding this issue.
I have a Thinkpad T500 laptop that originally had a broken LCD. Prior to this issue the laptop worked great and the battery charged and worked normally on Vista 64bit. Removed covers and replaced LCD with a T500 LCD complete panel and that was it. LCD worked great, no issues. I decided to upgrade system to Windows 7 Ultimate (64bit) before testing or checking to see if system was working fine using battery only. I have performed all the updates available from Lenovo and Windows that apply to this system including bios upgrades.
The system detects the original lenovo battery (6cell) 95% battery life at 97% charge all information indicates that the battery is good and still has plenty of cycles to go before becoming useless. Battery would not charge either under bios, under Ubuntu or under Windows. I bought a new 3rd party battery to test if it was a bad battery. New 9cell battery get detected all information is as expected and the battery charge is at 55% charge and 99% life. I performed the same test to try to charge it, no luck.
Another issue is that the batteries have some charge in them but when I uplug the power supply the system just shuts down. I have removed the batteries with power on and reset them (everything behaves normal, like what you would expect). I have tried to turn on the system with just the battery but it does not work. The battery icon does not even come on. It is like the battery is not there. It only gets detected while plugged in. I even have tried removing the cmos battery to see if that worked. I have also tried uninstalling the Lenovo's Power Manager software and let Windows take over. I have also deleted Microsoft's ACPI - Compliant Control Method Battery as posted on other posts.
Does anybody know how to test the battery leads to the motherboard or has any other suggestions for this issue. It is a great machine and it would be a shame to not be able to use it as it was intended.
I thank you beforehand for your help and advice.
Sincerely,
Sergio037
hey sergio037,
welcome to the forums,
since you mention Ubuntu and Windows, i'm guessing your unit is under a dual-boot system.
would it be possible for you to have Windows only installed and then try again ?
try with and without the Power Manager installed.
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Paul -
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Just adding this info incase it helps...
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