Macbook Pro detects the battery but don't use it

So my battery is really low and I already ordered the new one but still...
Macbook detects my battery. Coconut shows its health charge level and other stats:
However it won't charge it neither it will use it as its power source.
My Macbok will not even start without AC power.
I already tried to reset everything I could (like PRAM NVRAM and SMC).
Any suggestions?

Yeah the battery is nearly 3.5 years old and it has warn out. Batteries only last so long then they fail. Even if it show it is charged it does hold sufficient charge to power the system.
Replace the battery.

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It's the firt time i buy a macbook (pro) (and the first time i post here).
I have recieved my macbook pro today, firt i've pluged it to the home electricity, and the i've started it. Then, when the battery charge was full, i've unplugged it. And now, my main question is : Shall i used the computer on the battery until it shut down automaticaly, or shuld i plug back the computer to electricity before it shut down?
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Portables with built-in batteries
Current Apple portable computer batteries are pre-calibrated and do not require the calibration procedure outlined in this article. These computers use batteries that should be replaced only by an Apple Authorized Service Provider.
MacBook
MacBook (13-inch, Late 2009) and later
MacBook Air
MacBook Air, all versions
MacBook Pro
MacBook Pro (13-inch, Mid 2009) and later
MacBook Pro (15-inch, Mid 2009) and later
MacBook Pro (Retina, Mid 2012)
MacBook Pro (17-inch, Early 2009) and later
http://support.apple.com/kb/HT1490

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This is a long-standing problem we've all been waiting on a fix from. I was rooting for the EFI update this morning to fix it, but no love.
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Brady_LS wrote:
Hello!
A user in our office left their MacBook Pro (2007, OS 10.6.8) locked up in their desk during a holiday break. When they returned, the battery had swollen enough to force a corner of the access panel open. I removed the battery back and tray to inspect the insides: clean and dry. There appeared to be no leakage. We tried starting it up. The but the screen wouldn't even flicker. It remained black. (I noticed, too late, however, that the user kept holding down the power button when they didn't get what they were expecting from the screen.) The model is a 2007 MacBook Bro with Mac OS 10.6.8
A couple questions:
1) I've never heard of a laptop battery swelling up on its own after lying dormant for two weeks. Is that possible? What are the normal indicators of a failing battery?
Swelling is a common indicator of a failing battery.
2) Is it possible to restart the MacBook without the battery pack and tray inside? What is the best procedure for doing or determining that?
Not always, and even if you can the MBP will run at a lower speed.
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Macbook Pro detects the battery but don't use it

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