The impressive battery life in the iPhone can be attributed to the A11 bionic fusion chip. The 10 nm manufacturing process brings a lot of the features closer together, which makes the phone more efficient. The A11 bionic chip packs the perfect combination of efficiency and power on the iPhone. Considering the size of the battery, the iPhone is considered to be more of a phablet than a smartphone, especially when you compare the size of the battery and the size of the screen.
View Battery Percentage
By default, iOS is built in such a way that it does not show the battery percentage remaining. However, you can still turn this on in your Settings app. The iPhone, however, comes without this setting. To see how much battery power you have on your phone, swipe down on the right side of the notch. The ability to view remaining battery power has been built into the Control Center.
Saving Battery Life
One of the things that many people appreciate about the iPhone is how long the battery can run. Given all the things that you can do with this phone, a battery that can push you one and a half days is terrific. However, the iPhone is capable of drawing the battery out for much longer.
According to experts, you can save up to 60% more on battery life. There are simple changes that you can make, like using the grayscale mode, black wallpaper, or creating a pseudo-dark mode by inverting colors.
All these are possible because of the OLED display used on the iPhone. You cannot do this on LCD screens, though, because their pixels are backlit across the board. OLED screens, on the other hand, have all their pixels lit individually. Therefore, by default, black pixels are not lit, they are always off, helping you conserve power.