Macbook Pro died and won't turn back on

Hi,

I have a Macbook Pro 13' (it's about 1.5 years old). I was on it a couple of hours ago when I got the running on reserve battery indicator. Before I could plug the charger in, it died. I have had the charger in for over 2 hours now and it still won't turn on. The green light is on on the charger. When I unplug the charger the first battery strength light flashes on twice but that is it. When it is plugged in the battery strength lights do not go on at all. I have been searching for an answer for over an hour but can't seem to find one. Any help would be appreciated.

Thanks!