|Let troubleshoot this by simply removing the battery. Almost all laptops will work without the battery. If it works without the battery, you have one or more issues. Power supply is to weak to charge the battery and run the computer. The battery is bad and pulling to much power, causing undervoltage/undercurrent, or the plug is damaged causing the same thing. Most all of these are caused from a bad battery.|
So take out the battery and try to start it up. Also see if you battery has a charge monitor strip on it. (hold the spot down and it tells you how much charge the battery has.
The Computer Dr