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iPhone 13 and iPhone 13 Pro battery test shows just how much ProMotion improves efficiency [Video] - 9to5Mac
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iPhone 13 Pro: a teardown channel purports to reveal its battery capacity in amp-hours - NotebookCheck.net News
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Apple reveals battery capacity of all iPhone 13 models, iPhone 13 Pro Max said to pack a 4400mAh battery
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NEWDERY Battery Case for iPhone 14 Pro & iPhone 14, 4800 mAh Portable Protective Rechargeable Extended Battery Power Pack Charging Case for iPhone 13 Pro & iPhone 13 (6.1 inch): Amazon.co.uk: Electronics & Photo
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