Major problems

Ok so i have a large stack of things working against my on my M17X (R2)

1: My AC adapter will not be reconized, but its stock

2: Due to this, It wouldn't charge

3: In a event, the AC adapter was unplugged without me knowing, Bringing it down to 2% power

4: I accidentaly hit stealth mode and now its on stealth mode, But apparently it still thinks its on Battery power... Even though the battery isnt even in the computer, So i cannot turn it off but it is stuck on

5:I am a massive Gamer, Its my life, all of it, If i cant get a fix soon ill work to get a new computer

Please someone help if they can!