We've heard plenty of rumors about the iPhone 15, and the latest to catch our attention concerns a new type of battery technology that Apple may be introducing with the flagship handsets that are due to launch in September.
As per seasoned tipster @RGcloudS (via BGR), all four iPhone 15 models are due to come with what's known as stacked battery design. It's already used in electric vehicles, and – as the name suggests – means the battery components are stacked on top of each other.
