It seems that Apple is improving the battery life of the iPhone with the range of iPhone 13, through several design changes, larger batteries and efficiency improvements.
/article-new/2021/03/iPhone-13-Battery-Life-Feature.jpg?resize=560%2C315&ssl=1)
On a recent note for investors seen by MacRumorsA reliable analyst, Ming-Chi Kuo, explained that the four models of the iPhone 13 will have larger batteries with higher capacities:
The new 2H21 iPhone models have a larger battery capacity than the iPhone 12 series, thanks to the space-saving design of many components. Therefore, the new 2H21 iPhone models are also a bit heavier than the iPhone 12. The space-saving design includes integrating the SIM card slot with the motherboard, reducing the thickness of the front optical modules, and more.
The change will be implemented using various space-saving design options, such as integrating the SIM card slot into the motherboard and reducing the thickness of the front-facing TrueDepth camera array.
The larger batteries of the iPhone 13 models will mean an improved battery life, in contrast to the iPhone 12, which saw a reduced overall battery size compared to the previous generation. The iphone 12, 12 Pro and 12 Pro Max have 295 mAh, 231 mAh, 282 mAh batteries smaller than their predecessors, but the battery life has been largely the same due to efficiency improvements.
Since the launch of the iphone 12 line, there have also been concerns about how 5G connectivity can hamper battery life. The iPhone 12 mini, in particular, has a small battery due to its compact size and has been criticized for its battery life for not being able to last an entire day.
A disadvantage of the internal design changes pointed out by Kuo is that the iphone 13 models are expected to be a bit heavier due to their larger batteries.
Changes in the display technology used in the iPhone 13 Pro may also be responsible for improving battery life. The iPhone 13 Pro and iPhone 13 Pro Max are expected to get ProMotion screens with varying refresh rates. In addition to offering high refresh rates of up to 120 Hz when needed, ProMotion also allows for slower refresh rates when there is less movement on the screen to improve battery life.
In addition, the A15 chip is likely to provide some iterative efficiency improvements to support battery life.
The iphone 13 range is expected to arrive later this year, with a smaller notch, camera stabilization with extended sensor change, 6E Wi-Fi compatibility and more.