The EU just spilled the iPhone 18 Pro's battery numbers

Apple never publishes battery capacity, but a European labelling rule pushed this year's Pro figures into the open.

Sep 13, 2026

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The EU just spilled the iPhone 18 Pro's battery numbers

Apple never publishes battery capacity, but a European labelling rule pushed this year's Pro figures into the open.

In brief

Apple never publishes battery capacity, but a European labelling rule pushed this year's Pro figures into the open. The iPhone 18 Pro line got a real battery increase over the 17 Pro, and the US Pro Max is spec'd differently from the model sold everywhere else. Originally reported by TechRadar.

Apple never tells you this

Battery capacity is one of the few numbers Apple keeps off its spec sheet. You normally wait for a teardown to find out what is actually inside the phone.

A rule did what leaks could not

Screenshot from Apple's September 2026 event

European energy labelling rules make manufacturers file battery and durability data into a public database. Apple has to comply to sell the iPhone 18 Pro in the EU.

The 18 Pro gained real capacity

The iPhone 17 Pro next to the iPhone 18 Pro

Those filings show this year's Pro sitting above the iPhone 17 Pro rather than holding flat, which is the upgrade Apple hinted at on stage without ever naming a figure.

Pro Max takes the crown

Apple iPhone 18 Pro and iPhone 18 Pro Max Hands-On

The larger body carries the biggest cell in the lineup, so the Pro Max stays the pick if screen-on time is the thing you actually care about.

US buyers get a different one

Apple iPhone 17 Pro Max HANDS ON

The Pro Max sold in the US is listed with a spec tweak the international model does not share, a regional split that goes back to Apple stripping the SIM tray from US iPhones.

Why the filings matter

The iPhone 17 Pro next to the iPhone 18 Pro

Regulation is now a more reliable spec source than the keynote. Expect battery, repairability and durability numbers to leak this way every September.

The main idea

The iPhone 18 Pro line got a real battery increase over the 17 Pro, and the US Pro Max is spec'd differently from the model sold everywhere else.

Read the original on TechRadar

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