iPhone 8/Plus 8+ Battery health

[Simacca]

My launch day 8+ battery health is at 93%. Have I got anything to worry about or is the battery health section not that accurate? iOS 11.4

 

[JPack]

Your phone is on the low side of battery health. Many people with iPhone 7 report 90-95%.

 

[aakshey]

Not normal. Get it replaced by paying USD 29.

If you’re using fast charging then that’s the culprit.

 

[C DM]

My launch day 8+ battery health is at 93%. Have I got anything to worry about or is the battery health section not that accurate? iOS 11.4

https://forums.macrumors.com/threads/what’s-your-battery-capacity.2112507/

 

[Newtons Apple]

Wait a week and check it again.

 

[NoBoMac]

Not normal. Get it replaced by paying USD 29.

If you’re using fast charging then that’s the culprit.

No and no.

Again, the $29 battery replacement program is for out-of-warranty devices. An iPhone 8/8+ is still under warranty, so, ineligible.

https://support.apple.com/iphone/repair/battery-power

Through December 31, 2018, the out-of-warranty battery service fee is $29 for all eligible iPhone 6 or later models. Battery service at $29 may be limited to one repair per iPhone.

I fast charge once every day and my day one 8 is at 98%. That said, if OP is frequently running the battery down multiple times per day and fast charging multiple times a day and or heating up the device frequently (eg. really heavy use, sitting in a hot car), yes, the battery might be getting stressed more than most people. But since Apple supports USB-C charging on their devices, fast charge is a safe charging method.

 

[Ffosse]

I'm surprised that both my 8 (bought Oct 17) and my X (January 18) both show 100%, although I'm not yet convinced of Apple's battery health accuracy.

Perhaps it is accurate and reflects that I've used both phones quite lightly.

 

[Simacca]

Not normal. Get it replaced by paying USD 29.

If you’re using fast charging then that’s the culprit.

Am in uk, so not sure what the policy is here. I use wireless charging mainly.

 

[Simacca]

No and no.

Again, the $29 battery replacement program is for out-of-warranty devices. An iPhone 8/8+ is still under warranty, so, ineligible.

https://support.apple.com/iphone/repair/battery-power



I fast charge once every day and my day one 8 is at 98%. That said, if OP is frequently running the battery down multiple times per day and fast charging multiple times a day and or heating up the device frequently (eg. really heavy use, sitting in a hot car), yes, the battery might be getting stressed more than most people. But since Apple supports USB-C charging on their devices, fast charge is a safe charging method.

My battery is usually between 40 and 50% by the end of the day, and then I will wirelessly charge in the evening, then switch off charger when it reaches 100%.

 

[Simacca]

I remember doing a hard reset which made the battery drop by about 3%. This was ages ago on iOS 11.

I still get really good battery life, so will most probably wait and see how it goes.

 

[Petru246]

Hi, bought my iPhone 8 in February 2018 and now I have 90% battery life. It is normal? I only charge it with the charger found in the box. I am still under one year warranty.