iPhone Battery Health: How to Fix Your Slow iPhone on iOS 11.3?

The iOS battery health has always been an issue faced by Apple users. It was after the update of iOS 11, when users realized how drastically the software consumed the overall battery of their device. A lot of iOS users complained iPhone battery draining fast or iPhone was slowed down. Apple got a serious backlash and even apologized for the iOS 11 bugs that affected the battery life of iOS devices. To make it up to its users, it has come up with new iOS 11.3 battery settings. If your device was also facing this issue, then it will come as a big relief. Read on to know more about the iOS 11.3 battery health update and how to use it.

Part 1: iOS 11.3 new feature - Battery Health (Beta)

When iOS 11 was rolled out, users with older generation devices like iPhone 6 or 7 experienced a drastic change in their device’s battery performance. The consequences were so disastrous that Apple had to formally apologize for it and gave a discount on the replacement their device’s battery. This was because the battery was not able to supply the peak performance requirements of a device. Due to this, the iOS device would shut down unexpectedly.

To resolve this issue, Apple has introduced the feature of Battery Health (Beta) in iOS 11.3 update. To access it, you can simply go to your device’s Settings > Battery > Battery Health (Beta). This will let you know the battery status of your device and will automatically optimize its performance. Even though the iOS 11.3 Battery Health is in a beta stage, it gives promising results. We expect it to evolve with the coming iOS updates as well.

Part 2: What devices will have Battery Health?

The updated iOS 11.3 battery settings are certainly a great relief for the users of devices like iPhone 6 or 7, who faced evident problems with the previous iOS 11 update. Even though iOS 11.3 update supports iPhone 5s and newer devices, iPhone 5s won’t get the iOS 11.3 battery health feature.

• All the iPhone 6 and newer generation devices will get the iOS 11.3 battery health beta update.

• If you have an iPhone 5s, then you won’t get the update. Devices older than iPhone 5s are not compatible with iOS 11.3 update.

• The devices that are most likely to be affected by this iOS battery health feature are iPhone SE, iPhone 6, iPhone 6+, iPhone 6s, iPhone 6s+, iPhone 7, and iPhone 7+.

• While iPhone 8, iPhone 8+, and iPhone X will also have the feature, they won’t face a drastic change. This is because the newer generation devices already have an optimized battery performance management.

iphone battery health

Part 3: How to view your iPhone's Battery Health?

After the iOS 11.3 update, users can manually check if their device’s battery is performing in an optimized way or not. Firstly, go to your device’s Settings > Battery. Here, you can view the apps that have consumed the device battery the most. To get an in-depth diagnostic, tap on the “Battery Health (Beta)” option. There are two major features that you can find here – Maximum Capacity and Peak Performance Capability.

iphone battery health

Maximum Capacity

The Maximum Capacity feature displays a level of the battery’s capacity on a scale of 0 to 100 percent. Relatively, when the iPhone’s battery is brand new, it will be denoted as 100%. Since Lithium batteries discharge a little with every cycle, the scale will let you know its overall efficiency.

According to Apple, the battery would still retain 80% capacity, after being charged 500 times. If this iOS 11.3 battery health feature depicts a less than 80% capacity, then you should get a new battery.

iphone battery maximum capacity

Peak Performance Capability

As you know, devices like iPhone 6 or 6s were getting turned off unexpectedly while running on iOS 11 at times. This was due to the fact that the battery was not able to support the peak performance of the device. Thankfully, the iOS 11.3 battery settings will help your device to optimize its performance. It will let you know if your device’s battery is running normally or in any other stage.

Normal Performance

Under the “Peak Performance Capability” feature, you can view the current status of your device’s battery performance. If the battery is supporting the normal peak performance, then you will get a message like this. In this case, you don’t have to worry about the iOS battery health.

iphone battery performance

Throttling Applied

When your device’s battery receives an overload and is not able to supply enough power for its peak performance, then it can turn off unexpectedly. To prevent further damage, the iOS 11.3 battery health automatically turn on the throttling of its performance. The peak performance capability prompt will be changed and you will get a message like this. It denotes that the performance management has been applied to make sure your phone won’t shut down unexpectedly.

iphone battery throttling applied

Status Unknown

If you want, you can always disable the throttling feature manually as well. Besides that, the iOS 11.3 battery settings can also detect other issues with your device’s battery. If the battery is old or not inserted correctly, then you will get a prompt like this. It would indicate that your device is not able to detect the battery health.

iphone battery unknown status

Battery Degraded

Furthermore, the iOS 11.3 battery health feature will also let you know if your device’s battery has been degraded. In this case, you will get a message like this. If your iPhone battery is significantly degraded, then you should get it replaced by visiting an authorized Apple service center.

iphone battery degraded

By using these iOS 11.3 battery settings, you can take control of your device’s battery and know its status as well.

Part 4: How to Turn Off CPU Throttling on iPhone?

As you know, the performance management of the iOS 11.3 battery settings can automatically turn on CPU throttling. This kills some processes in the background to make sure your device won’t shut down again and supply enough power for its performance. Though, some users don’t like the CPU throttling on their iPhone and would like to turn it off. You can also do the same by following these steps:

1. Since an iOS device can automatically turn on the battery peak performance management, you need to go to its Settings > Battery > Battery Health to view it.

2. Under the “Peak Performance Capability” section, you can view the current state of the battery. If the throttling is enabled, you will get a message like this.

disable cpu throttling on iphone

3. Now, tap on the “Disable” button to turn off the CPU throttling.

4. Once it is disabled, you will get the relevant prompt, stating that you have manually turned off the performance management.

Part 5: iPhone Battery Health FAQs

Since the iOS 11.3 battery update is brand new, a lot of users are a bit confused about it. To help you understand it in a better way, we have listed some frequently asked questions.

FAQ 1. Can I turn on throttling manually?

No. While there is an option to turn off the throttling manually, it is enabled automatically. Your phone will turn on the CPU throttling whenever it would restart due to a battery issue. Since the peak performance management isn’t a toggle button, you can’t turn it on/off just like that. Until and unless your device would detect that its battery is not able to supply its peak performance, you won’t be able to turn on CPU throttling.

FAQ 2. What if I turned it off but my phone is still slow?

While the new iOS battery health feature can optimize the performance of your device’s battery, it can’t boost its processing automatically. It can improve the lagging and the unexpected shutdown, but it can’t guarantee to make your phone fast. If there is any problem related to its voltage, overheating, etc. then it won’t be able to resolve this issue.

FAQ 3. How do I know if my battery is affected?

The Maximum Capacity feature of the iOS 11.3 battery settings will let you know the current status of your battery. If the battery capacity is less than 80%, then chances are there is some issue with it and you should get it replaced. Though, the performance management can turn on throttling even if your battery’s capacity is at 100%.

After getting to know about the new iOS 11.3 battery settings, you can easily use this advanced feature on your device. Even though this is not an ideal fix for the battery issue that a lot of iOS users were facing, it is a crucial step that will certainly give you some relief. The iOS 11.3 battery health is only at a beta version and is expected to get more advanced with the coming update. To use this feature, you have to update your device to iOS 11.3. Go ahead and give it a try and share your feedback with the rest of our readers as well.

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Apr 14,2018 15:05 pm / Posted by Selena Lee to iOS 11

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