iPhone 18 Pro Models to Feature Upgraded Battery Capacities

The upcoming iPhone 18 Pro and Pro Max are expected to have improved battery capacities. The Pro Max will reportedly have a 5,567mAh battery, a 10% increase from the previous model. The Pro model will have a 4,288mAh battery.

Apple's AAPL next-generation iPhone 18 Pro and Pro Max will carry larger batteries, according to regulatory filings . The iPhone 18 Pro Max is expected to ship with a 5,567 mAh battery in the US, a roughly 10% increase over the iPhone 17 Pro Max's 5,088 mAh cell, while the smaller iPhone 18 Pro is set for a more modest bump to 4,288 mAh from 4,252 mAh [doc1, doc5].

The filings are among the more reliable early signals of hardware specs ahead of a launch, since carriers and regulators require battery certification well before a public unveiling. Apple has not commented on the figures, and the exact release date remains unconfirmed, though the filing pattern points to a September launch consistent with Apple's usual annual cadence .

Battery life has been a recurring area of incremental, rather than dramatic, improvement across recent iPhone generations, and this cycle looks similar: real-world gains will depend on how Apple's silicon and software efficiency work pair with the larger cell rather than the capacity increase alone.