An alleged early-stage prototype battery for the iPhone 16 Pro has surfaced online, revealing a modest increase in capacity and a glossy metal shell. 

Shared by Apple collector @KosutamiSan on X/Twiiter, the battery boasts a 3355mAh capacity, a mere 2.5% jump from the iPhone 15 Pro’s 3274mAh battery. However, the current version of the battery reportedly features a frosty metal shell and a redesigned connector, suggesting ongoing refinements.

Earlier this month, the same source mentioned that Apple was testing a graphene thermal system that included a metal shell for the battery.

Despite the minor 2.5% battery capacity increase, the iPhone 16 Pro’s battery life improvement would surpass the iPhone 15 Pro’s 2.3% gain. It would also exceed the 2.3% battery life boost seen in the iPhone 15 Pro Max compared to its predecessor. 

Notably, the iPhone 15 battery capacity increased by 4.6%, and the iPhone 15 Plus saw a 1.4% battery life improvement over the iPhone 14 Plus.

Rumors regarding battery capacity upgrades for the next iPhone iteration are a common occurrence. In July, speculations pointed to an 18% increase for the iPhone 15 battery, 14% for the iPhone 15 Plus and iPhone 15 Pro models, and 12% for the iPhone 15 Pro Max. However, actual battery capacity gains fell short of these predictions.

Related: