All iPhone 15 models might get massive battery life boost, Foxconn employee reveals possible battery sizes

So, with no further ado, here are the exact numbers that this report predicts for the iPhone 15 series.

As you can see, these are big improvements, especially for the vanilla iPhone 15 model which could be getting a bigger battery than the iPhone 12 Pro Max from a few years ago! The iPhone 14 model that is currently on sale averages about 6 hours of screen time, and with such an update, we might get well into 7 hours of screen time or more on the iPhone 15.

As for the iPhone 15 Plus and iPhone 15 Pro Max models, those are also getting a welcome boost. Even now, most people average two days between charges on these larger phones, and now, does this mean that you could use the phones for three days off the charger? Once again, we don't know, but we are definitely excited about that possibility.

As we pointed earlier, our biggest doubt about this rumor has got to do with the design of the phones: we have heard that Apple might tweak some minor things in the design, but the overall 6.1-inch size for the vanilla and Pro models, and 6.7-inch size for the Plus and Pro Max models remain the same. How will the company fit so much larger batteries in roughly the same space?

While on the topic of battery life, we should mention that Apple is said to use the new A17 Bionic 3nm chip on the iPhone 15 Pro and the iPhone 15 Pro Max, and that chip is rumored to bring a 35% improvement in power efficiency.

What we know with far bigger certainty is that all four iPhone 15 models will make the switch to a USB-C port, and away from the proprietary Lightning cable that Apple has been using for the last decade or so. This is great news and it is also possible that we get slightly faster charging speeds along with that transition.

So far, we have to guess about all of that, but Apple typically releases its new iPhones in the beginning of September, so it won't be too long until we find out from the source itself.