iPhone 18 Pro Max may get bigger battery and Apple A20 chip for improved battery life
By An insider has revealed fairly precise details about the battery capacity of the upcoming iPhone 18 Pro Max, which, like its predecessor, will launch in two variants: one supporting eSIM only, and another with a physical SIM card slot. Paired with the new Apple A20 processor, this should lead to a noticeable boost in battery life.
According to supply chain information shared by Chinese insider Digital Chat Station, Apple plans to equip the iPhone 18 Pro Max with larger batteries. The eSIM-only model is expected to house a battery around 5100-5200mAh, while the model with a nano-SIM slot will feature roughly a 5000mAh battery.
Both versions will be slightly higher in capacity compared to the current iPhone 17 Pro Max, which offers a 5088mAh battery in the eSIM variant and 4832mAh in the physical SIM version. While Apple still can’t compete with some Chinese Android phones boasting batteries up to 10,000mAh, the company appears to be focusing on other ways to extend battery life.
One key improvement is the switch to the new Apple A20 Pro chip, which will be the company’s first processor built on a 2nm process node. Generally, shrinking the process technology leads directly to better energy efficiency, which should positively impact how long the iPhone 18 Pro and iPhone 18 Pro Max last on a single charge.
That said, Apple probably won’t be the first to launch a 2nm mobile processor. Samsung is expected to unveil its Exynos 2600 chip built on the same 2nm technology soon, likely powering some Galaxy S26 models. However, that chip will be manufactured in-house by Samsung, whereas Apple continues its partnership with TSMC for chip production.
