Apple Introduces Battery Performance Manager for iPhones

Apple recently came under fire when it was observed that it degrades the performance of iPhones as and when it ages. This was reported as iPhone BatteryGate by many publishers. The fact it that every phone has a battery which, as you know, is made up of chemicals. These chemicals deteriorate over a period of time thus reducing the amount of power the battery can deliver. This is similar to the rechargeable batteries we use in toys which has a very specific life span and charge cycles it can go through. Once the chemicals in batteries ages enough, the only alternative is to replace them. This phenomenon, i.e., depleting battery life, is common across all devices run on batteries.

iPhones uses Lithium Ion battery technology. It is relatively advanced where it lets manufacturer pack a good amount of power in relatively smaller package. Moreover, Apple advocates fast charging on these batteries. However even these are consumables and prone to chemical ageing thus resulting into less capacity and peak power.

The Maximum Capacity is the maximum amount of charge a battery can hold. This is basically the milliamps (mAh) number shown on the technical specifications. For example, the iPhone 7 plus boasts of 2900 mAh battery and over time the max capacity can be 90% of original which means it can hold 2610 mAh. It may as well mean the battery may not last the whole day charge anymore 🙂

And Peak Power or Performance is the amount of power battery can ‘instantaneously’ deliver. For example, while playing a game if you turn all the settings to fullest, it will involve your CPU & GPU to ask more power from battery. If for some reason the battery can’t deliver it, it would simply drop the rate and slow down your game or in worst cases simply reboots your phone. Same goes with other phone features as well.

iPhone Battery

Starting iOS 11, Apple has introduced a feature called ‘Battery Health (Beta)’ which can let you see the Maximum Capacity and Peek Performance of your battery. If for any reason iOS detects that your battery is deteriorating, it would kick in the ‘Power Management’ feature which would help prevent unexpected shutdowns at the expense of performance. So when it kicks in, you may feel that your device is slowing down then expected.

You can access the ‘Battery Health (Beta)’ from Settings > Battery > Battery Health (Beta) after you have upgraded to iOS 11.3. It will show you the capacity and peek performance as well as if Power Management has kicked in. If Power Management has indeed kicked in, you can as well disable it by the Disable… option. It may mean that your phone would unexpected shutdown more frequently but not at the cost of performance.

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