Why iOS 11.3 reports battery status 'Maintenance'?

iPhone using non-genuine battery will not be able to check battery status on iOS 11.3
Comparing the battery life of iPhone on iOS 11.3.1 and iOS 11.4, after upgrading the battery is wasted?

At dawn yesterday, Apple officially released iOS 11.3 and iOS users were able to update to iOS 11.3. It can be said that in this upgrade, the most anticipated feature is the ability to view the remaining battery capacity compared to when it was just released, this is a very good and easy thing for you to monitor the battery health and can go instead when needed. However, after upgrading to iOS 11.3, many of you wonder about the performance reduction feature when the battery is in "Maintenance" status. So what does this notice mean?

How to check battery status and turn off iOS 11.3 performance
What do you need to prepare for iPhone while waiting for iOS 11.3?
Guide to downgrade iOS 11.3 to 11.2.2, 11.2.5

Specifically, according to some of you, when iOS 11.3 update is officially successful, go to Settings (Battery)> Battery (Battery)> Battery Health (see Battery status), the item "Maintenance" appears. "and can not click to see as shown below.

Why iOS 11.3 reports battery status 'Maintenance'? Picture 1

By studying some Apple documents, there is no mention of this item. However, it is known that most of those who encounter the above situation have one thing in common: they have replaced batteries at outside stores. Thus, it is highly likely that users have replaced non-genuine batch batteries and Apple will not support this feature with the battery replacement.

Until now, it is unclear what other possibilities lead to this situation. If this feature is displayed, Maintenance for a batch battery is also a good test for you when buying a device.

One more question from some of you is why there is no Battery health in the Battery section of iPhone 5s. The answer is that Apple only provides features to view the device's battery status and turn off the iPhone slowdown feature for iPhone 6 and above, but unfortunately for iPhone 5s, "apple house" does not support the calculation. This feature.

Hopefully, the above information can help you "solve" your questions. In addition, if you still do not know how to upgrade the latest iOS update, please refer to the official iOS 11.3 Update Guide to turn off the iPhone slowdown feature to know how to do it.

Having fun!

See more:

How to turn off taking photos when calling FaceTime on iOS 11
How to fix application errors that cannot be opened on iOS 11
How to enable one-handed keyboard mode on iOS 11

Isabella Humphrey

Update 25 May 2019

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Why iOS 11.3 reports battery status 'Maintenance'?

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