iPhone 18 Pro Expected to Feature Minor Battery Enhancements and New A20 Chip
iPhone 18 Pro tipped for minor battery gains this year — but there's a hidden upgrade coming

Image: Tom's Guide
The iPhone 18 Pro is set to launch with a battery capacity of 4,056 mAh, slightly improved from its predecessor. However, the new A20 chip promises significant efficiency gains, potentially enhancing overall battery life. The eSIM-only model may offer a 4,288 mAh battery, while the Pro Max version is rumored to have around 5,200 mAh.
- 01The iPhone 18 Pro will have a 4,056 mAh battery, with a 4,288 mAh option for the eSIM-only model.
- 02The new A20 chip, built on TSMC's 2nm process, is expected to be 15% faster and 30% more efficient than the A19 chip.
- 03Battery life improvements are attributed not only to battery size but also to Apple's control over hardware and software integration.
- 04The iPhone 17 Pro Max currently ranks 10th in battery life among smartphones, indicating increased competition from Android devices.
- 05Apple may need to explore alternative battery technologies to maintain its competitive edge in battery performance.
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Apple's upcoming iPhone 18 Pro is anticipated to feature a modest battery capacity of 4,056 mAh, with a slightly larger 4,288 mAh option for the U.S. eSIM-only model. While these figures represent minor upgrades compared to the previous iPhone 17 Pro, the introduction of the new A20 chip could significantly enhance battery efficiency. Built on TSMC's advanced 2nm process, the A20 chip is expected to deliver a 15% performance boost and improve energy efficiency by 30%. This integration of components may allow for a larger battery and better thermal management. Despite these advancements, the iPhone 17 Pro Max has seen its battery life ranking drop to 10th place, as Android competitors with larger batteries gain ground. To maintain its position, Apple may need to innovate further by exploring new battery technologies and improving energy efficiency across its devices. The iPhone 18 Pro is set to launch later this year, and consumers are eager to see how these changes will affect overall performance and battery life.
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The introduction of the iPhone 18 Pro with improved battery technology may influence consumer choices and set new standards for smartphone battery performance.
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