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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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install new battery from ifixit, but battery only last for 2.5 hour

Purchased a battery from fixit to replace the OEM battery in MacBook Air 2015. After installation, and calibration, the battery only last for 2.5 to 3 hours before completely drained. I calibrated the battery as stated on the website multiple time and it does not seem to help the issue.

Should I be getting longer battery life than that? I remember the OEM battery last couple 6 to 8 hours for normal use

I use Coconut Battery to look at the battery. It looks like the battery was made almost 2 years ago, and it is only charging to 92.5% of the designed capacity.

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Any suggestions will be helpful.

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Make sure you don’t have something running hard or wild, open Activity Monitor app to see if something is chewing your power

If you don’t see anything, I would contact iFixit to get a replacement, clearly 2.5/3.0 hours is not normal.

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Get it replaced, sounds like you got old stock. This is why I don’t buy parts from ifixit, only tools.

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Where would you recommend getting parts from?

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@strongbow - I’ve used their batteries for quite a few years and many others have as well. COVID has messed up a lot of supply chains, iFixit has of late been bit a few times, in any case they have always stood by their warranty.

@mic85 - Did you contact iFixit? I’m sure they will take care of you as long as it’s under a year (even being over a few weeks I’ve seen them take care of their customers)

In any case make sure you get a good warranty and from an outfit that’s been around at least a good five years.

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