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I would go for a genuine Apple battery - aftermarket tends to be nightmarish.
 
I would go for a genuine Apple battery - aftermarket tends to be nightmarish.
That is my general thought also, but OWC has a good reputation which is why I thought the NewerTech might be different then the normal aftermarket.
 
That is my general thought also, but OWC has a good reputation which is why I thought the NewerTech might be different then the normal aftermarket.

I understand where you are coming from. I saw a post about that same branded battery not to long ago, but it was just talking about purchasing it and not any sort of evaluation of it. If I recall, most in the thread - including myself - recommended a genuine one instead.

Hopefully someone can comment on it specifically, but I thought I would just share my personal, general rule of thumb regarding batteries with you.
 
I recently posted about my purchase from iFixit of a replacement battery for my mid-2009 13" MBP. Here's what I said:

I recently bought a replacement battery from iFixit for my mid-2009 MBP. (The original battery lasted almost 6 years.) The replacement battery had a test certification on the box indicating it had a capacity of 5828 mAh. After installing it, Coconut Battery showed a design capacity of 5770 and a maximum charge of 5404. This represents about 93 percent of maximum measured capacity right out of the box.

My original battery reached 93 percent after more than two years of use. I contacted iFixit, and they told me to give it at least a month for the battery to settle in. It's remained the same after two months. To their credit, iFixit offered to exchange the battery if it didn't improve. I assume iFixit sells authentic OEM batteries, and maybe I got a bad one. The battery was manufactured 10 months ago, and I suppose there could be some loss of capacity just sitting on the shelf without being used.
 
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