Images have leaked online today depicting a new battery designed for the iPhone 16 Pro, showing a new metal casing and a slightly larger capacity.

iPhone 16 side feature
The images come from a leaker known as “”.Gosutami,” who has leaked accurate information about Apple’s plans in the past, are the first images to be shared of the iPhone 16’s components, if real.

The battery is said to be designed for an early iPhone 16′ Pro prototype with a capacity of 3,355 mAh. The iPhone 15 Pro has a 3,274 mAh battery, which means that the flagship iPhone 16 Pro models currently have a 2.5% larger battery. The new battery has a redesigned connector.

The most notable change is the switch from the black foil casing, which has been used on every iPhone model so far, to a frosted metal shell. This change improves the thermal performance of the battery without significantly affecting the weight of the components. The Apple Watch had black foil-encased batteries, but starting with the 40mm Apple Watch Series 7, Apple began using metal shells for improved thermals.

Apple Watch 40mm Battery Replacement ifixitNew and old Apple Watch battery designs (via iFixit).

Early component images confirm information shared last week that Apple plans to introduce a new thermal system in the iPhone 16 to reduce overheating. Apart from the metal-shell batteries in the iPhone 16′ Pro models, the entire iPhone 16′ lineup is rumored to feature a graphene heat-sink to reduce overheating. Graphene has high thermal conductivity, surpassing copper, which is currently used in iPhone thermal-coils. Apple has been interested in graphene for thermal management for some time, filing patents related to exploring the material for heat dissipation in small devices.

The moves seem to come in part to address overheating issues with the iPhone 15 Pro, which Apple apparently addressed earlier this year with a software update.

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