Recent leaks suggest that the battery capacities for the upcoming iPhone 18 Pro models will see modest improvements compared to last year. Apple appears to be testing different battery sizes for various regions, with the U.S. model likely to have a larger battery due to the absence of a physical SIM card slot. The Chinese version, which still includes the slot, reportedly has a capacity of around 4,056 mAh, while the U.S. version is expected to be approximately 4,288 mAh. These figures represent slight increases over the iPhone 17 Pro’s battery capacities. However, the efficiency of the device, driven by the anticipated A20 Pro chip and the new C2 modem, is expected to play a more significant role in enhancing battery life. Additionally, the iPhone 18 Pro Max may offer a more substantial increase, potentially exceeding 5,000 mAh. These details remain speculative until further confirmation ahead of the anticipated mid-September launch.

