Except for the brief blip for the introduction of 5G for iPhone12, Apple phones have always provided a reasonable and sometimes stellar battery life. Indeed, both the iphone15Pro Max and iPhone15Plus are on the list of phones with the best phone battery life (although they are the 13th and 14th spots respectively). 

Can the upcoming iPhone16 series go further and provide greater stamina? There are some battery and charging rumors that certainly give us hope. Here are 5 of them...

Battery capacity is measured in mAh. It can give you the idea that it could be used in a few hours, but it doesn't tell the full story. Screen technology, software optimization, and chip efficiency (not to mention that you're using your phone) have all the phone running time

Nevertheless, according to Naver leaker Yeaux1122, Apple could hit more than 16 hours on the iPhone30Pro model.  At the moment, Apple claims the iPhone15Pro phone offers "up to 29 hours of video playback," so it doesn't have to stretch further to justify this claim. Non-professional ones are listed in "up to 26 hours", so you'll need a big leap to match.

So far, leakers seem to have coalesced around the idea that most iPhone16 phones will be larger in capacity and run longer. 

2 leakers have been challenged to attach mAh figures to some models — although the conclusions are different. According to Weibo leaker Baby Bay Sauce, the standard iPhone16 will come with 3,561mAh cells (up 6%), the Pro3, 555mAh (up 2%) and the Pro Max4, 676mah (up 5%). For the Pro model, X user @lipilipsi thinks it will be even larger, with capacities of 3,577 mAh and 4,747 mAh, respectively.

No matter how much you increase, you need to get more stamina across the board by combining increased capacity with the efficiency savings of the A18 chipset. With one possible exception...

Interestingly, Baby Bay Sauce says that one iPhone would seemingly go backwards. According to Leaker, the iPhone16Plus packs a battery of 4,006 mAh — a drop of 15% on the 4,383mAh cell located in the iphone9plus.

Given that the iphone15Plus has the best battery life I've ever seen on an Apple phone, it's a shame if it's true. Still, saving the efficiency of the chip may not be noticeable in everyday use. 

If these battery numbers are correct, the iPhone16Pro Max will have a maximum capacity at a distance of about 600〜750mAh than the large-screen iPhone16Plus and more than 1,000mAh than the smaller models.

Does that mean it will be chunkier? Not always. According to analyst Ming-Chi Kuo, the energy density of Pro Max's upcoming batteries will be higher, which means more milliampere-hours of battery capacity in the same area. In other words, you can have more batteries in the same slim frame.

Real stamina, of course, is just part of the puzzle. Another is the charging speed of your phone, and Apple has so far seen some Android phones go from zero to 100% full with a triple figure watt charger that does not participate in the charging arms race within 15 minutes.

It doesn't sound like Apple is approaching these speeds, but one tipster thinks the company is making some progress. At X, Paras Guglani writes that he believes the iPhone16 series will offer 40W wired charging and 20W wireless charging. 

That's a big step up from the current 25W limit, but even if he's right, Apple is unlikely to go back to bundling the charger with its phone, so you'll have to buy a plug to benefit from these new speeds.

As with all smartphone manufacturers, the iPhone's battery life has become a trade-off between slim and light aesthetics over reasonable running time. In the IPhone16 family, it sounds like the phone's battery life is slightly upward, except for the Pro Max model, which makes a big difference.

However, faster charging is huge and can make relatively short running times much more manageable. It's more doubtful of the above rumors, but it will eventually be the most exciting — and probably will be needed with the density of the Pro Max battery, which takes a long time to fill. 

We'll see where Apple will end up when 9 new iPhone models are announced in the 4th month of this year.