Dell :: Plugged In, Not ChargingMOBO Didn't Fix Now My Battery Is Out Of Warranty

I had this plugged in but no charging issue and I called, they said it was the MOBO or the AC. So the guy came today and put in a new MOBO and used a new AC, but it still won't charge.

So he called Dell and they said it had to be the battery (even though we don't get the light 1/3/5 indication on the battery meter), and that since I was out of the 1 year battery warranty I would have to pay.

Well here is the thing, I have a freaking 4 year warranty on this thing, and it is barely over a year old and the battery already failed? WTH is up with that? Also, the guy said my battery warranty expired in March, but I didn't even place the order until June and I didn't get the computer until July 18 or even later. And they won't approve my battery replacement, they said if I called before the end of July (like 2 days earlier) I would be able to. This is ridiculous.