Last night Apple released the second Beta of iOS 11.3 to developers. It's notable in that it lets us have a first look of Apple's proposed solution to how we can monitor our Battery Health and control what Apple is calling the 'Peak Performance Capability' of our iPhones.
Apple has been very verbose to label this 'Beta' within the release so expect things to change, but see what we have.
For iPhone 6 and later, iOS 11.3 adds new features to show battery health and a recommendation if a battery needs to be replaced. These can be found in Settings > Battery > Battery Health (Beta).
Before we dig in, the battery health rules are these:
As we said previously, this is a Beta implementation and the above rules will probably be improved over the next few Beta releases as it doesn't seem quite right to us.
The Battery Health screen includes information on maximum battery capacity and peak performance capability. Maximum battery capacity measures the device battery capacity relative to when it was new. Batteries will start at 100% when first activated and will degrade as the battery chemically ages which may result in fewer hours of usage between charges.
If your iPhone suffers an unexpected shutdown, the performance management features will be applied, you'll see this message:
This iPhone has experienced an unexpected shutdown because the battery was unable to deliver the necessary peak power. Performance management has been applied to help prevent this from happening again. Disable…
Note that if you disable performance management, you can’t turn it back on. It will be turned on again automatically if an unexpected shutdown occurs. The option to disable will also be available.
If you disable the applied performance management feature, you'll see this message:
This iPhone has experienced an unexpected shutdown because the battery was unable to deliver the necessary peak power. You have manually disabled performance management protections.
dear, iPhone has better battery back up than Note 8, am using Note 8 too.
There has been some... Also this problem hits different people different ways depending on how is your battery. All in all it is really big problem with iPhone6 models where balance between battery and peak power Are not in best balance. Have ...
But we all know this isn't really true. Have you ever heard of a flagship non Apple phone (lets say 3 years old) shutting down by itself? Not very often. Apple only tried to "fix" an almost non existent problem.... only to get encouraged to buy their...