Chosen Solution
I tried turning my computer on while plugged in, but nothing no power indicator or anything. I removed the battery and tried turning it (still plugged in) and still nothing. I did forget my laptop in the trunk of my car for a couple of days, and I am concerned if it was affected by moisture.
Soooo many reasons could cause this, and the only way to be sure is to run a full diagnostic on it. you could have a problem with your AC adapter. you could have a problem with your power button you could have an issue with the charger port, you could have an issue with moisture you could have an issue with board damage I would try testing for each of those, in that order, to find out what you need to replace.
