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Released April 2010 / 2.4, 2.53 GHz Core i5 or 2.66 GHz Core i7 Processors

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Problem battery iFixit store.

I bought a new battery on iFixit store and I just replaced it.

After replace I left my Mac on charging all night for more of 12 hours for first charge.

This morning the battery was successfull 100%, although after about 2 hours or less of not using (stop mode) it is on 73%. I don't know what could be the problem.

What can I do to solve?

Update

Now with new battery Coconut sow me this...

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Answered! View the answer I have this problem too

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What was happening with the old battery. For a better diagnostic of he battery go here and download and run Coconut Battery and let us know your results.

http://www.coconut-flavour.com/coconutba...

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6 Comments:

I don't know what was happening with the old battery, but his state was "need assistance" so i decided to buy a new one here. Also Coconut showed me that it needs assistance.

Now with new battery Coconut sow me this...[image|777093]

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Sorry I'm new and I don't know why doesn't sow the image. So Coconut shows me that:

Current charge: 3257 mAh

Maximum charge: 6791 mAh

Capacity: 6800 mAh

Age: 112 day

Battery failure: None

Loadcycles: 3

OSX Battery Status: Good

Battery Temperature: 39.7°C (just now coconut shows me a worring)

Battery usage: 15.1 Watt

Battery state: Discharging...

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Here's @oldturkey03 guide on how to add an image to an existing question. Yours did not post: Adding images to an existing answer

Your battery is discharging, do you have the mag-safe adapter plugged in? If so, what color is the light on it?

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No I didn't have the magsafe plugged in. Now I have the magsafe plugged in and the light is orange with the battery on 70% and Battery state on charging

The temperature is too high, 45°C now...

by

Just what is running 45 degrees and how do you know?

\Priming a New Battery

Not all rechargeable batteries deliver the rated capacity when new, and they require formatting. While this applies to most battery systems, manufacturers of lithium-ion batteries disagree. They say that Li-ion is ready at birth and does not need priming. Although this may be true, users have reported some capacity gains by cycling after a long storage.

“What’s the difference between formatting and priming?” people ask. Both address capacities that are not optimized and can be improved with cycling. Formatting completes the fabrication process that occurs naturally during use when the battery is being cycled. A typical example is lead- and nickel-based batteries that improve with usage until fully formatted. Priming, on the other hand, is a conditioning cycle that is applied as a service to improve battery performance during usage or after prolonged storage. Priming relates mainly to nickel-based batteries

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