Apple iPhone 16 Pro Max may offer longer battery life

Apple iPhone 16 series is expected to launch in September and in the run up to the debut, the rumour mill is already churning out scores of leaks. According to another such leak, iPhone 16 Pro Max is expected to get a boost in battery life.
Apple analyst Ming-Chi Kuo has said that the Cupertino-based giant is increasing the energy density of the battery cells of iPhone 16 Pro Max, which will result in longer battery life.
“My latest supply chain survey indicates the energy density (Wh/kg) of the battery cells of iPhone 16 Pro Max will increase, which has the benefit of longer battery life with the same battery size or lower battery size with the same battery life,” he said in a post.

However, with increase in energy density of the battery cells, there will be an increase in temperature when running. To tackle this, Apple will use the stainless steel battery case.
“Increasing the energy density of the battery cells will increase the battery temperature when running. To avoid overheating the battery, Apple uses the stainless steel battery case for the first time as a thermal solution,” Kuo said.
While stainless steel may not be as effective as aluminium in dissipating heat, “it is more robust and less susceptible to corrosion, so in addition to dissipating heat, the stainless steel battery case provides better protection for the battery and the iPhone system.”
Kuo noted that the use of a stainless steel battery case will reduce the difficulty of removing the battery, hence, helping Apple to “comply with the European Union’s requirements for mobile phone batteries’ replaceability in the future.”
“If the mass production of this new battery design (upgraded energy density of battery cells & adoption of the stainless steel battery case) goes well and the feedback is favourable, this new battery design will be adopted in all 2H25 new iPhone models,” Kuo noted.

The iPhone 16 series is rumoured to replace physical buttons with touch-sensitive buttons that simulate a press with haptic feedback. The camera layout might shift to a vertical design, unlike the current diagonal setup. The customisable Action button, currently on Pro models, might be available on all iPhone 16 models.
Under the hood, the standard iPhone 16 and Plus models might use the A18 chip, while Pro models could get the A18 Pro chip. Meanwhile, the display size for iPhone 16 and Plus (6.1-inch and 6.7-inch) might remain the same, but the refresh rate could improve.