According to a report from 9To5Mac, Apple has now published official battery capacities for the devices on the Chemtrec website.

For the iPhone 13, Apple packed in a 12.41 watt-hour battery. The iPhone 12, for comparison, included a 10.78 watt-hour battery. That’s an increase of 15% in terms of battery size, which is no small change.

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Moving onto the iPhone 13 Mini, Apple bumped the battery to 9.57 watt-hours from 8.57. That’s a solid 11.6%.

The iPhone 12 Pro features the same 10.78 watt-hour battery as the iPhone 12, but the iPhone 13 Pro now has an 11.97 watt-hour battery. So you’ll get an 11% boost from the previous iPhone 12 Pro. That’s smaller than the regular iPhone 13, which is surprising, to say the least.

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The beastly iPhone 13 Pro Max comes with an equally imposing 16.75 watt-hour battery. Last year’s Pro Max featured a 14.13 watt-hour battery, which means it increased 18%—the most significant boost of any of this year’s devices.

According to Apple, the iPhone 13 Pro Max is rated for 28 hours of continuous video playback on a single charge. Based on the actual power offered by the battery and the more efficient A15 chip, that number seems attainable.

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