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Model A1237 or A1304 / 1.6, 1.8, 1.86, or 2.13 GHz Core 2 Duo processor

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MacBook air battery 0%

Hi,

I'm having a weird issue here with the macbook air. First I thought the battery was dead so I purchased a new one. After replacing it: no charging, the magsafe light green, 0% on the battery icon. If I unplug the adapter -> sleep mode. I plug back the adapter, it wakes up but still 0% forever...

I tried (without success) pram and smc reset.

I also opened the rear case, plugged the adapter, power on, disconnect the battery while still powered, reconnect the battery and tada! Displaying 88% battery, everything seems normal, no sleep mode if I unplug the adapter, I thought the problem was solved. But if I shutdown and unplug/replug the adapter, I'm having the 0% battery issue again.

I cannot start the macbook without the magsafe adapter plugged. But I found another "trick": I plug the adapter, press the power button and unplug immediately the adapter. It boots, displaying 0% but still without going to sleep mode.

What the ****'s going on?

EDIT

Problem solved. I did the trick with unplug/replug while still powered and let it charge a whole day. Then everything came back normal.

I'm not a specialist but it sounds like something needed to "charge" apart from the battery.

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Hi jpfroud, thanks for the EDIT on your message. I have the same issue unfortunately and no forum out there has been helpful. However you seem to have done something but I can't seem to understand your trick. Could you detail it a bit more? That would great if you could !

Thanks in advance

Damien

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@Damien Busson

Sorry, can’t remember, it’s too old

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RUN AHT and see what it says.

My vote is for a bad SMC chip. If so, this would not be a beginner DIY project. If you have lots of experience with soldering small electronic or computer components your qualified, if not - this is not the place to start.

If this answer is acceptable please remember to return and mark it.

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Problem solved. I did the trick with unplug/replug while still powered and let it charge a whole day. Then everything came back normal.

I'm not a specialist but it sounds like something needed to "charge" apart from the battery.

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jpfroud crwdns2934231:0crwdne2934231:0
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