iPhone 8 plus battery degrading too early

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Level 1

8 points

iPhone 8 plus battery degrading too early

I bought an iPhone 8 plus almost 2months ago and it has so far been great, battery-wise. However, a few days after upgrading to 11.3, I noticed that the battery health meter was showing 99% already. So I checked with coconutBattery and it showed 98.8% with only 22 charge cycles! I‘ve only used an iPad charger since I bought the 8 plus, and rarely drained below 20% or fully charge it.

I estimate that with this rate of degradation, my battery health in 2years would be 70%. For comparison, I have an iPhone 6 that has seen a bit of an abuse when it comes to charging (I charge it whenever, wherever, and while using for video call for hours at a time) and after 3years the battery health is at 85% as per ios 11.3 battery health beta.

Should I be worried with the battery of my Iphone 8 plus? I’ve read some article that the newer iPhones have better battery management but significantly shorter lives.

Posted on Apr 11, 2018 8:55 AM

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Answer 1

y_p_w

Level 6

17,762 points

Apr 11, 2018 9:28 AM in response to mark_v1

Brand new battery capacity can vary due to manufacturing tolerances. ±5% can be typical. I wouldn't count on your battery having any linear drop from 100%.

I've got an iPhone 7 bought in Feb 2017. The iOS Beta battery health reading is 96% and seems to be relatively stable. I've also checked it in coconutBattery (shows over 200 cycles) and Battery Health, and I've seen those values vary from anywhere from 92% to 98%. What seems to be the biggest issue is temperature, where it tends to register higher when it's warmer.

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Answer 2

Philly_Phan

Level 7

20,737 points

Apr 11, 2018 9:09 AM in response to mark_v1

I think that you're over-analyzing. Relax and enjoy your phone.

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Answer 3

mark_v1 Author

Level 1

8 points

Apr 11, 2018 9:23 AM in response to Philly_Phan

I could be 😁. Just perhaps looking for others with similar experiences and relieve my worries.

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Answer 4

mark_v1 Author

Level 1

8 points

Apr 11, 2018 9:45 AM in response to y_p_w

Thanks! I've downloaded Battery Health and Lirum Info Lite and both are showing 100%. I guess I'll just see how it goes as the iOS beta battery health is further developed.

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iPhone 8 plus battery degrading too early

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