While it won't make headlines like the camera and display, the iPhone 16's battery is an important factor that many users are concerned about when considering an upgrade We all want our phones to hold a charge longer and stay cooler when running hard, so rumored upgrades in these areas will have a big impact on how Apple's new phone will be received when it arrives in September

The iPhone 16, iPhone 16 Pro, and iPhone 16 Pro Max all appear to have power cell updates planned In addition, there will be more milliamp hours offered for all models (except one - we'll get to which one it is) Hopefully, this means that the new models can match or even improve on the already strong battery performance of the iPhone 15 and iPhone 15 Pro (The iPhone 15 Plus, in particular, is still part of our Best Battery Life list nearly a year after its release)

Below, we've compiled a list of battery-related iPhone 16 rumors so you can get all the information on possible changes before Apple's Glowtime event on September 9, when the latest model is likely to make its first appearance

And if you're hungry for more, read about another big upgrade tipped for the new iPhone - the iPhone 16 capture button

Like the specs, the battery detail that iPhone users really care about is how long they can use their iPhone before it goes to the charger And Leak-O-Sphere claims to have this information, albeit for only one iPhone 16 model

Battery life could see at least a minor upgrade in the iPhone 16 Pro Max, which is claimed to offer a promised 30 hours of video playback, up from the 29 hours promised in the iPhone 15 Pro Max This could be due to a number of factors, including a more efficient display and chipset However, the most likely cause of this extended battery life is the increased capacity of the phone's power pack [There are many other factors that can affect the battery, such as display and chipset power consumption

Let's look at the increased capacity of three of the four expected iPhone 16 models - this rumor has been leaked from two different sources As the table below shows, the purported iPhone 16 battery size is up several percentage points for the basic iPhone 16, iPhone 16 Pro, and iPhone 16 Pro Max compared to the previous models in the iPhone 15 lineup

The unlucky model in the iPhone 16 family is the iPhone 16 Plus, which will reportedly have a smaller battery based on figures contained in the same leaked information This would be bad news for those who like the features of Apple's Pro models but do not want to pay the price that the Pro Max demands It is also worth noting that the iPhone 15 Pro had the worst battery life of last year's models It beat the average smartphone by about an hour in our tests, but it was the only iPhone that failed to surpass the 11-hour mark that a truly long-lasting device can surpass

Rumor has it that Apple will change more than the size of the iPhone 16 series' battery For one thing, the battery's heat dispersion will be improved with new connectors and a brushed metal shell While previous iPhones have used a shiny metal shell, Apple has previously used a matte texture on the Apple Watch to address this issue seems like a great idea

On a similar note, at least for the iPhone 16 Pro Max, the battery may take up less space despite being larger because of the 5-10% higher cell density This will be achieved by using a new stainless steel housing Since this rumor specifies the Pro Max, other iPhone 16 models may not have this feature Let's hope that at least the smaller iPhone 16 Pro will have this feature

It is also said that Apple is using new suppliers in India as well as China to produce the millions of batteries needed for the iPhone 16 series This will probably not be noticed when using the new iPhones, but it will be important to Apple This is because it means a larger pool of component manufacturers to work with and hopefully avoid problems due to missing parts or single points of failure

Finally, one for the repair-rights fans - the iPhone 16's battery could be easier to replace to meet the EU's latest battery replacement regulations Replacing the power pack will likely still require some specialized knowledge and tools, but we're happy with what makes it easier for users to replace a dying iPhone battery when necessary