According to Digital Chat Station, the 3C certification data of Apple’s battery supplier has exposed the iPhone 18 Pro’s battery information in advance.Specifically: iPhone 18 Pro: National Bank 4056mAh, US version 4288mAh iPhone 18 Pro Max: National Bank 5391mAh, US version 5567mAh
For comparison:
iPhone 17 Pro: National version 3988mAh, US version 4252mAh
iPhone 17 Pro Max: National version 4823mAh, US version 5088mAh
It can be seen that the iPhone 18 Pro Max has increased significantly after adding a steel case battery. The National Bank version also exceeded 5000mAh for the first time, reaching 5391mAh in one fell swoop.
Although this capacity is still far behind the domestic flagships that often start at 8000mAh, it is already a huge improvement for Apple. With the optimization of the new iOS 27, there may be a qualitative leap in actual battery life.
According to supply chain calculations, in high-load scenarios such as daily socializing, video shooting, and mobile games, the comprehensive battery life of the 18 Pro Max has increased by 14% to 17% compared to the previous generation.
In addition, the main difference between the US version and the National Bank version is due to the SIM card layout. The US version eliminates the physical card slot and leaves all the internal space for battery stacking, while the National Bank version still retains the physical card slot, occupying part of the space.