The light on the charger will only stay on orange.

Check the battery health buy downloading Coconut Battery (freebee). Also check in Apple/About this Mac/Info and look for your battery manufacturer. If it says Sony then Apple has a real bad batch of Sony supplied batteries. It's not a recall, but it you take it to Genius bar, they will run a special diagnostic (I think they just check it's serial against their secret serial list) and if it's on their you get a new one. Those batteries have been known to swell and even explode.

I took my 2.5 year old battery *really out of warranty* but only had 40 cycles on it that wouldn't hold a charge. He checked the diagnostics, reached behind him, pulled out a brand new battery *this one is made by SMC*, handed me back the MBP and said thanks for coming in. No charge, no issues.

So check out the battery.