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Apple says the iPhone 15’s battery has double the promised lifespan

Apple has updated the iPhone 15’s battery lifespan. The company said on Tuesday its latest iPhones can retain 80 percent of their original charging capacity after 1,000 cycles — double the company’s previous estimate.

As for how the estimate doubled without any physical or software changes, the company attributes the upgrade to continual improvements to its battery components and iOS power management. Starting in June 2025, smartphone and tablet manufacturers doing business in the EU will be assigned a grade(A to G) indicating their energy efficiency, battery longevity, protection from dust and water and resistance to accidental drops. The battery longevity portion of the grade requires at least 800 charging cycles while retaining at least 80 percent of their original capacity, helping explain why Apple began retesting its devices’ long-term health.

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