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How long should a replacement battery last?

I bought a replacement battery from iFixit in June 2021 (~2yrs ago) and my System Report is telling me the condition of my battery is "Service Recommended". After 2 years, my battery has 163 cycles and a full charge capacity of 4130 mAh. Is this a reasonable amount of time/cycles for my battery to be replaced? Otherwise, my 10yr old mac works just fine so i'm not inclined to spend 1.5k on a new computer.

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This question was migrated from https://www.ifixit.com/Answers.

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I'll poke around and see what I can find out.

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A Mac battery should last for 1000 cycles or around six years. Download Coconut Battery, run it and post your results so we,can take a better look at it.

https://www.coconut-flavour.com/coconutb...

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@mayer, see updated post with screenshot from coconut

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Batteries wear due to non-use, or age and cycles; whichever comes first.

Take for example, my secondhand 2015 DG from eBay I got for $300:

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This battery LOOKS bad but the heavy use on the battery is good because it wore the battery very well; it's near the low 80% mark which looks scary at first but the cycle count essentially means I'm in good shape, outside of my unit not qualifying for the Apple recall :-(.

Batteries are like cars: They have to be used, or they fail or you run into issues you'd never run into on a machine with a "well-loved" battery. Sure I have a little more than 50% of the cycles to play with on this battery and it's been used, but that's par for the course with the 2015 and older; the people who held onto them to avoid the DongleBook Pros absolutely ran them hard because they're tanks. The downside is that many of them have well-loved batteries today, but if you can get that risk matched in the price (and it isn't swollen) you're getting a good unit. At this point, I tell anyone buying one to maintain Intel support to expect this level of wear.

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I still own my 2014 Iris; I needed the GPU for things like PSE.

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Ian Estes will be eternally grateful.