iPhone 18 Pro Max battery specs have surfaced online, revealing the model A3166 cell. Produced by Sunwoda and Desay, the unit boasts a 5187mAh capacity at 3.903V, with a maximum charging voltage of 4.57V. Thanks to a laminated design, the cell allows for a flexible, custom-bent cable layout, optimized to fit the internal architecture of the phone. This power boost is expected to provide a major upgrade in battery longevity, leaving users eager for real-world performance benchmarks.
The move marks Apple’s continued reliance on laminated cell technology, which first debuted in the iPhone 16 Pro series. By sticking to this proven structure, Apple is doubling down on efficiency. This technology isn't limited to iPhones either; Apple is already integrating these laminated cells into its proprietary power banks, proving the versatility and reliability of this battery architecture across its ecosystem.
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