Macbook does not detect battery

[DllD]

How about you guys.

This week I have taken a very unpleasant surprise to my Macbook. Suddenly and without remember anything unusual has started to not detect the battery. Load the symbol next to the clock shows a 'X' into the stack and click on it says "no batteries available".

I tried to disconnect if some wag had left nothing but bad posture.

Another thing that happens is that it no longer go to sleep when you close the lid.

The Macbook also uses it to my girlfriend, although I have no doubt that treats physically it is true that is not defended with anything related to computing. Browse and little else.

Is there any possibility that both the battery and the rest have been disabled in a setting in Mac OS X? Is it definitely hardware failure?

Best regards and thanks in advance ...

[Trojan123]

Have you ever calibrated the battery on your laptop?

I can think you should reset the PMU, if not, call apple ..

[Kanga]

Try another battery, that way you can tell which is the problem, laptop or battery. Don't worry, apple should help you and take about a week to fix it, or maybe they could do something in your local store.

[DllD]

Thanks for responding! I've been absent these days and I could not reply earlier.

- Yes, I have calibrated the battery and use it whenever I try to load cycles compete.
- I have already reset: power off, remove battery, leave the adapter, hold the power to stop a few secs, etc ... Right?

Thank you!