MacBook Pro won't respond to power button.

Macbook Pro 13" (late 2011) OSX Mountain Lion
Hi
This is not my first Macbook, I have another 15" that had a similar problem, and I just fixed it by resetting the SMC. However this 13" is different. I was just using it normally, until the notifaction for low battery popped up, and so I just plugged in my charger, put it to sleep, and went on doing other things. When I came back after 2 hours, I noticed that my Magsafe charger is showing a blinking green light. At that point I try to wake my computer, and it wont wake up. (the sleep led is not on either) Afterwards, I try turning it on, but I had no luck. At that point I try resetting the SMC, but days before this, My shift button was unresponsive, and I took it to apple. I schedule a repair by the end of the week. They told me that nothing else was wrong. I mean, I'm going to take it to apple on saturaday, But I need it for work for 1 last day. I was wondering if there was any quick fix, or if anyone know what is the problem with it.
I also noticed that when I plug in my other magsafe charger, I get a blinking red led instead. Also the battery level led is not responsive as well.
Can anyone help me?
Thanks in advance
Mat

Have you checked the battery status in System Information>Hardware>Power>Battery Information?  What does it say regarding Condition?
This is from my MBP:
Ciao.

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    1. Repair the Hard Drive and Permissions
    Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list.  In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive.  If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
    If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
    2. Reinstall Snow Leopard
    If the drive is OK then quit DU and return to the installer.  Proceed with reinstalling OS X.  Note that the Snow Leopard installer will not erase your drive or disturb your files.  After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
    Download and install Mac OS X 10.6.8 Update Combo v1.1.

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