Not trip. (battery nice!)
Unplug the AC Power from the wall. Unplug the AC from the Laptop.
Take the AC cord, and separate it into two pieces! This allow any resistance built up in the converter to release.
Set it aside.
Take the laptop, and take the battery out. Now, flip over the laptop, and hold down the power button for 60 SECONDS! YES count them out! This also, removes any "built" up power, and clears out the registers!
Now, put the battery in. Put the power cord back together. Plug the power cord into the laptop. Plug the power cord into the wall, and try to power it on.
Let us know!