"Battery not available"

[tamim.]

Alright so my Mac suddenly shut down for no reason, then it opened up a few minutes afterwards then I noticed that the charge logo on the top right has an X on it, it said "Battery not available". I tried most solutions to no use. And no I'm not able to open the battery and reseating it. Also, before it happened, I was using the Mac normally and doing nothing unusual that might have set this off. It's also making a loud hovering noise.

 

[simsaladimbamba]

What exactly are those "most solutions"?

Maybe this can somewhat help?

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This should answer most, if not all, of your battery questions:
Apple Notebook Battery FAQ by GGJstudios
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[xxBURT0Nxx]

what kind of mac do you have? Can you take out the battery or is it a unibody? Is it under warranty? What solutions have you tried?

 

[tamim.]

To answer your questions, I've tried resetting the SMC, and tried restarting/shutting down. I've got a MacBook Pro 15 inch and I can't take out the battery.

 

[ryannazaretian]

If it's within warranty and you have an Apple store nearby, definitely go to Apple.

Well, 2 things can cause this, and both are hardware related.

The battery cable has come loose.

Hardware failure.

You can check the battery cable pretty easily. Just remove the back cover. It will be a pretty big connector near the battery. You may want to remove it and plug it back in.

From iFixIt.com:
2011 15"
2009/2010

You can also go to the iFixIt website for more detailed instructions. I'm suggesting a disconnect/reconnect of the battery.