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iPhone 18 Pro Battery Capacities Revealed by Regulatory Filings

MacRumors • Mon, 06 Jul 2026

New Chinese regulatory certification filings appear to confirm the battery capacities of Apple's upcoming iPhone 18 Pro and &zwnj;iPhone 18 Pro&zwnj; Max models. According to new filings in China's C3 database, spotted by the leaker known as " Digital Chat Station " on Weibo, the &zwnj;iPhone 18 Pro&zwnj; is seemingly rated for 4,056mAh in China and 4,288mAh in the U.S., up modestly from the iPhone 17 Pro 's 3,988mAh and 4,252mAh. The &zwnj;iPhone 18 Pro&zwnj; Max shows a bigger jump, rated for 5,391mAh in China and 5,567mAh in the U.S., compared with 4,823mAh and 5,088mAh on the &zwnj;iPhone 17 Pro&zwnj; Max, an increase of nearly 500mAh. &zwnj;iPhone 18 Pro&zwnj; China China Difference U.S. U.S. Difference iPhone 16 Pro 3,582mAh +308mAh 3,582mAh +308mAh &zwnj;iPhone 17 Pro&zwnj; 3,988mAh +406mAh 4,252mAh +670mAh &zwnj;iPhone 18 Pro&zwnj; 4,056mAh +68mAh 4,288mAh +36mAh &zwnj;iPhone 18 Pro&zwnj; Max China China Difference U.S. U.S. Difference &zwnj;iPhone 16&zwnj; Pro Max 4,685mAh +244mAh 4,685mAh +244mAh &zwnj;iPhone 17 Pro&zwnj; Max 4,823mAh +138mAh 5,088mAh +403mAh &zwnj;iPhone 18 Pro&zwnj; Max 5,391mAh +568mAh 5,567mAh +479mAh The devices in the filings are not directly named the &zwnj;iPhone 18 Pro&zwnj; and &zwnj;iPhone 18 Pro&zwnj; Max, but are highly likely to relate to these models. The China and U.S. capacities differ because Apple has continued to include a SIM tray on iPhones sold outside the United States, while U.S. models have been eSIM only since the iPhone 14 lineup. Without a physical tray taking up internal space, Apple can fit a slightly larger battery into the U.S. version of each device. The certification listings cover battery models S2232 and S2233 for the &zwnj;iPhone 18 Pro&zwnj; and 2235L/2235 and 2236L/2236 for the &zwnj;iPhone 18 Pro&zwnj; Max, and also show rated energy figures of up to 21.751Wh and a 4.520V charge limit voltage, and list all four batteries as valid through May or June 2031. The numbers line up with Digital Chat Station's report from June , which gave identical figures for the &zwnj;iPhone 18 Pro&zwnj;. In a separate post the same day, Digital Chat Station said supply chain information from months earlier had already pointed to the China model landing in the "5,000mAh" range , and suggested that a 5391mAh cell paired with the 2nm A20 Pro chip could deliver a noticeable battery life improvement. The &zwnj;iPhone 18 Pro&zwnj; models are rumored to feature a smaller Dynamic Island , a variable aperture main camera , the C2 modem outside of the U.S. , and more. The &zwnj;iPhone 18 Pro&zwnj; and &zwnj;iPhone 18 Pro&zwnj; Max are expected to launch in September alongside Apple's first foldable iPhone. Related Roundup: iPhone 18 Pro This article, " iPhone 18 Pro Battery Capacities Revealed by Regulatory Filings " first appeared on MacRumors.com Discuss this article in our forums

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New Chinese regulatory certification filings appear to confirm the battery capacities of Apple's upcoming iPhone 18 Pro and &zwnj;iPhone 18 Pro&zwnj; Max models.

According to new filings in China's C3 database, spotted by the leaker known as " Digital Chat Station " on Weibo, the &zwnj;iPhone 18 Pro&zwnj; is seemingly rated for 4,056mAh in China and 4,288mAh in the U.S., up modestly from the iPhone 17 Pro 's 3,988mAh and 4,252mAh.

The &zwnj;iPhone 18 Pro&zwnj; Max shows a bigger jump, rated for 5,391mAh in China and 5,567mAh in the U.S., compared with 4,823mAh and 5,088mAh on the &zwnj;iPhone 17 Pro&zwnj; Max, an increase of nearly 500mAh.

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https://www.macrumors.com/2026/07/06/iphone-18-pro-battery-capacities-revealed/

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