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Mid 2006 / model number A1181 / black or white case / 1.83 or 2.0 GHz Intel Core Duo processor.

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Battery issues: cannot charge beyond 99%, battery keeps charging.

I've got a Macbook Core Duo. Last numbers and letters of the serial number are: VMN.

I've got a cheap chinese battery. It's obviously on its last legs, since it gives me the ominous "Service Battery" issue, and it has only a meager 3744mAh left.

Lately, however, it gives me a really strange issue: when I charge, it gets up to 3715mAh, then stops charging.

The Magsafe still has its orange light, but the time for completing charge grows instead of shrinking.

However, of I reset the SMC and reseat the battery the magsafe returns green... until the battery discharges again.

Before acquiring a new, more trusty battery, I need to brace myself: is there something I could do to assess if the issue is somewhere in my mac?

I already tried to use the magsafe from another macbook. Sadly, it's a Pro, so the battery is different.

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I also noticed there's no need at all to reset the SMC. Taking the battery out and reseating suffices, and the battery shows a 100% charge, at 3744 mAh.


My favourite shop finally gave me the replacement battery. Well, the new Microcell brand battery works. 5400 mAh, the first calibrating cycle ended well, currently green.

Seems a nice battery does the trick. I suggest buying the original from iFixit, if the mailing fees don't constrain you. If not, reputable brands may give better results than fakes.


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Apple MacBook "Core Duo" 2.0 13" (Black) Specs

Identifiers: MacBook - MA472LL/A - MacBook1,1 - A1181 - 2092

Removing all power from the machine automatically resets the SMC. To get a better idea of where you stand, download and run Coconut battery for lots of battery information. I've had various success with the knock off batteries, from being OK to only lasting 4 cycles. I now buy the best I can (usually a Duracell) from my supplier BatteryBiz. He's supposed to be wholesale only but I've recently seen him selling on eBay.

Here's the link for Coconut:

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Oddly enough, Coconut Battery never worked with my battery... until today. Of course, the battery is well banged op.

I tried in a reputable shop a Microcell: 5200mAh, but when I asked to try it the battery reached 100%, and then the magsafe started flashing green and amber.

The seller told me it was surely a battery issue, and the next week he would give me a replacement.

For now, the banged up battery has 3744mAh of capacity, charged up, Service status.

I'll calibrate it, and then wait for the new replacement.

If something happens, I'll report, thank you kindly :) Either way, when this story will end, as soon as the shipment comes, I'll be glad to close the answer pool.


I recalibrated the battery. The step between 99% and 100% still takes half an hour to complete, the old battery has just lost 200mAh, so, it's dying.

The local shop isn't open on weekends, of course, but when tomorrow I'll be able to speak with them, I'll ask if they can get me a Duracell brand.

Thanks, as usual you were very helpful.


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Stefano Gigante zal eeuwig dankbaar zijn.

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