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The March 2015 update of Apple's 13" MacBook Air features fifth generation Intel Core i5 and i7 processors, resulting in slightly increased performance and battery life.

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Is it normal for an iFixit battery to be failing fast at 460 cycles?

I purchased a replacement battery in December 2019. Battery life seemed to be dropping off a bit in the last few months. In the last few days it has been terrible. I just checked coconutBattery and it says 459 cycles with only 50.5% design capacity and status is “check battery”. Do iFixit do any long-term testing on their replacement batteries? In my experience new Apple batteries start to experience some degradation after ~2 years but performance remains reasonable for 2-3 years after that depending on usage. This has just dropped off a cliff. I think the original battery it replaced was still at ~70% after 4-5 years. coconutBattery seems to be telling me the replacement has gone from ~90% to 50% in 2 months. It seems slightly suspect that they are warrantied for one year given this behaviour. Is this normal or unlucky?

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No, this is not normal. However, not all batteries are perfect. Likely, this is a one-off issue.

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A lot of the knockoffs aren’t the same quality as the OEM pack, so these kinds of issues happen more often then with third shift, or genuine batteries.

What I would do is recalibrate the pack and see, but more than likely, the battery is flat out worn. For Macs, you want to follow this procedure.

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sambrightman будет вечно благодарен.
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