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iPhone 18 Pro Max's Larger Battery Capacity Allegedly Revealed
Recent leaks indicate that the upcoming iPhone 18 Pro Max will come with a larger battery, showing a capacity boost to 5,391 mAh for global variants and 5,567 mAh for U.S. models. This marks an almost 12% increase from the previous iPhone 17 Pro Max's battery. However, the smaller iPhone 18 Pro is not expected to see similar enhancements, as it will only see a minimal increase in its battery capacity. These adjustments are likely due to design changes, including the removal of the SIM card tray for U.S. models, allowing more internal space for a larger battery. Current trends suggest Apple's focus on improving battery life with each new iteration.
MonitorConfidence: MediumShort term horizon
Published 10 Aug 2026, 16:45 UTC2 min read
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Summary
TL;DR
- iPhone 18 Pro Max battery capacity rumored to be 5,391 mAh for global versions.
- U.S. model may feature an even larger 5,567 mAh battery.
- This represents a nearly 12% jump from iPhone 17 Pro Max.
- iPhone 18 Pro to see minimal battery increase to 4,288 mAh.
- Removal of SIM tray in U.S. models creates additional battery space.
Interesting facts
- Battery improvements vary by model and region due to SIM card tray presence.
- iPhone 18 Pro Max may be thicker than its Pro counterpart.
Coverage gaps