Apple iPhone 17 battery life: As launch nears, last minute leaks claim battery can last entire day; here’s how

‘Awe Dropping,’ Apple’s biggest event of the year, is just a day away. It is set to take place on Tuesday, September 9, 2025 (Tuesday). During the event, the tech giant is set to release a range of iPhone 17 phones, which are slated to arrive in four avatars: iPhone 17, iPhone 17 Air, iPhone 17 Pro, and iPhone 17 Pro Max. Besides this, Apple will also likely unveil a new Apple Watch Ultra 3 alongside a new Apple Watch Series 11.

With just a few hours to go for the launch, a huge buzz is going around about the leak, which revealed that the battery of the new iPhone 17 Air can be really long-lasting compared to other iPhones and can last all day long.

What are the likely features of iPhone 17 Air?

The iPhone 17 Air is all set to introduce a new type of iPhone, which is a slim device with a large-screen display. According to media reports, the iPhone 17 Air is believed to carry a single-lens camera on the back, lack a physical SIM card slot, and pack an ultra-thin battery.

Will iPhone 17 Air battery last long?

Multiple leaks reportedly suggest that the battery of the iPhone 17 Air will also have iOS 26's new Adaptive Power Mode, and combined with the battery, which will likely be around or above the 3,000 mAh mark, the phone should achieve full-day battery life.

Analysts at Trend Force claimed that the iPhone 17 Air will have a silicon anode battery. This is another reason that strengthens the claim that the iPhone 17 Air battery will be strong, as these types of batteries feature lithium-ion cells where the graphite in the anode is partially replaced by silicon. This kind of chemical alteration can lead to improvement in battery life in thinner devices, as silicon binds to lithium better than graphite, according to BGR.

iPhone 17 phones likely to come without SIM card slot

The iPhone 17 Air, iPhone 17 Pro, and iPhone 17 Pro Max will be available with and without a physical SIM card slot, MacRumors reported, citing a Chinese regulatory database. Amid the leaks, multiple speculations have been doing the rounds suggesting that Apple is planning to eliminate the SIM card tray from iPhones in more countries beyond the US in 2025. The tech giant, however, said that the SIM card tray will likely continue to exist in some countries due to limited eSIM availability.

According to MacRumors, the models with a SIM tray seem to have slightly lower battery capacities than eSIM-only variants, as the tray occupies some space inside an iPhone.