iPhone L-shaped and I-shaped Batteries

Apple typically uses two types of batteries in iPhones: one is a lithium battery shaped like the letter "L," and the other is a lithium battery shaped like the letter "I."

What is the iPhone "L" Shaped Battery?

The L-shaped battery in the iPhone design was originally an irregular battery formed by joining two rectangular battery cells together, and Apple later refined the battery process to combine them into a single battery cell. Apple started using L-shaped batteries in iPhones beginning with the iPhone X to increase internal space while enhancing battery capacity.

iPhone Models Using L-shaped Batteries

So far, the iPhone X, iPhone XS, iPhone XS Max, iPhone 11 Pro, iPhone 11 Pro Max, iPhone 12 Pro Max, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 15 Pro, and iPhone 15 Pro Max all use L-shaped batteries. It is evident that Apple equips its higher-end iPhone models with L-shaped batteries, providing longer battery life.

 

What is the iPhone "I" Shaped Battery?

The "I" shaped battery in an iPhone refers to the traditional rectangular battery with a single battery cell, usually used in devices with simpler internal layouts and designs.

iPhone Models Using I-shaped Batteries

Earlier iPhone models, from the iPhone 4 to the iPhone 8 series, used I-shaped batteries. The subsequent release of the iPhoneXR, iPhone 11, iPhone 12, iPhone 12 Mini, iPhone 12 Pro, iPhone 13, iPhone 13 Mini, iPhone 14, iPhone 14 Plus, iPhone 15, and iPhone 15 Plus also use I-shaped batteries. Compared to L-shaped batteries, I-shaped batteries are simpler to manufacture, lower in cost, and easier to repair.

Future Expectations

Looking forward, it is likely that Apple will continue this tradition by using I-shaped batteries in standard models and L-shaped batteries in high-end models, including in upcoming releases like the iPhone 16.