There’s already talk about the iPhone 18 Pro Max, and here’s how much battery it should have

Rumors about Cupertino’s upcoming flagship, the iPhone 18 Pro Max, are becoming increasingly concrete.

At the center of attention this time is the battery life, which could benefit not only from a larger cell, but also from the efficiency guaranteed by the new manufacturing processes for the SoC.

The latest revelations, coming from sources close to the Asian supply chain, suggest interesting changes under the hood, with a particular focus on energy management and the internal architecture of the device.

iPhone 18 Pro Max will have a slightly larger battery, but not everywhere

According to the well-known informant Digital Chat Station on the platform Weibo, the battery capacity of the future iPhone 18 Pro Max will not be identical across all markets.

The substantial difference will lie in the hardware configuration related to connectivity. For the Chinese market, where the presence of the dual slot for the physical SIM is still a fundamental requirement, the adoption of a battery of about 5,000 mAh is expected. This engineering choice is dictated by the need to host the card reader, which takes up valuable space inside the chassis.

Different story for international variants, including the one we’ll presumably see in Europe and in the United States. The absence of the SIM physical tray, entirely replaced by the eSIM technology, will allow Apple’s engineers to make use of that extra space.

Therefore, the international model should house a slightly larger cell, with an estimated capacity between 5,100 and 5,200 mAh.

This is a marginal increase compared to the current generation: the iPhone 17 Pro Max, in fact, tops out at 4,832 mAh in the physical-SIM version and reaches 5,088 mAh in the eSIM-only version.

The efficiency of the new silicon

However, the mere increase in capacity tells only part of the story. The real evolution could lie in how this energy is managed. The rumors point the spotlight on the new A20 Pro processor, which should be the brain of the future device.

This chip would be built with a 2-nanometer manufacturing process, a technology that promises to drastically reduce energy consumption while maintaining performance.

The pairing of a larger battery and a less power-hungry processor could translate into a real, noticeably higher battery life compared to the past, addressing one of the most constant requests from professional users.

Beyond the technical specifications, a detail emerges that, if confirmed, would mark a turning point in Apple’s commercial habits. Rumors suggest that the launch scheduled for next September could concern exclusively the Pro line, skipping, at least for the moment, the standard iPhone 18 models.

Such a move would represent a clear break from tradition, which has always seen the debut of the entire smartphone family together.