Apple Reveals iPhone 18 Pro Models Feature Larger Batteries And Faster Charging

The A20 Pro processor is positioned in direct contact with the enlarged vapor chamber, a redesign intended to improve heat dissipation.
The iPhone 18 Pro uses electrically bonded adhesive as part of Apple’s effort to make the phone easier to repair, even as the out-of-warranty battery fee increases.
The infrared camera’s relocation to the display’s corner creates what the teardown calls “a new challenge for aftermarket display manufacturers,” potentially complicating third-party screen repairs.
Apple’s EU specifications show that the iPhone 18 Pro’s 4,056mAh battery is up from 3,988mAh in the iPhone 17 Pro, while the Pro Max rises from 4,823mAh to 5,391mAh.
Apple does not publish battery-capacity figures on its standard product page, listing only a claim of up to 45 hours of video playback; the capacities instead come from teardowns and regulatory energy labels.
Apple's iPhone 18 Pro models pack significantly larger batteries than their predecessors, with the standard Pro jumping to 4,056mAh globally and the Pro Max reaching 5,391mAh iFixit. Despite these capacity gains and efficiency improvements from the new A20 Pro chip, real-world battery life improvements remain modest: the Pro lasted 16 hours 17 minutes and the Pro Max 18 hours 27 minutes in testing Tom's Guide.
The Pro Max can hit 50% charge in roughly 15 minutes with a compatible 60W-or-higher USB-C adapter, reaching a full charge display in about 55 minutes 9to5Mac. However, Apple raised out-of-warranty battery replacement costs to $129, up from $119, while the relocated infrared camera and slimmer Dynamic Island may complicate third-party display repairs MacRumors.
The iPhone 18 Pro's global battery rose from 3,988mAh to 4,056mAh, while the eSIM-only U.S. model uses a larger 4,288mAh cell Tom's Guide. The Pro Max jumped to 5,391mAh from 4,823mAh, a 12% increase. Yet testing showed only 1 hour 40 minute gains for the Pro Max despite a 2nm processor, larger vapor chamber, and lower-power modem Analytics Insight.
Apple does not publish battery capacities on its product pages, instead listing only "up to 45 hours of video playback" MacRumors. Teardown firms like iFixit and REWA Technology uncovered the actual mAh numbers and design changes. The modest gains disappointed performance analysts who expected more dramatic improvements from hardware upgrades 9to5Mac.
The iPhone 18 Pro Max can charge to 50% in about 15 minutes using a 60W-or-higher USB-C power adapter 9to5Mac. A full charge shows on the display in roughly 55 minutes, though charging may technically continue after the 100% mark appears. Peak wattage reaches approximately 52W, matching or exceeding prior iPhone charging standards Tom's Guide.
Samsung's upcoming Galaxy S27 Pro and Ultra, confirmed by China's 3C regulatory filings, will stick with 60W charging but offer larger batteries at 5,200mAh and 5,700mAh respectively Analytics Insight. Apple's shift to electrically bonded adhesive aims to simplify battery removal for repairs, though the out-of-warranty cost jumped from $119 to $129 MacRumors.
Apple moved the Face ID infrared camera to the bottom corner of the display in the iPhone 18 Pro, a change that teardown analysts say creates "a whole new challenge for aftermarket display manufacturers" Tom's Guide. The slimmer Dynamic Island and new sensor location make independent screen replacements significantly harder without specialized recalibration tools.
Despite claims of easier repairability through electrically bonded adhesives, the hidden IR sensor and tighter internal layout restrict third-party repair shops 9to5Mac. The A20 Pro processor sits in direct contact with an enlarged vapor chamber for better heat dissipation, but other components sandwiched between board layers further complicate chip-level fixes MacRumors.
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