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.
из Stefano Gigante
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.
из Stefano Gigante