iPhone Ultra battery capacity leaks

  • Posted on July 10, 2026, 9 p.m.
According to Digital Chat Station on Weibo, one of Apple's usual battery suppliers just had a pair of batteries certified together, which means they are intended for a foldable smartphone (since these have split batteries due to the form factor). The batteries in question have a rated capacity of 1,921 mAh and 2,962 mAh, respectively, giving us a grand total of 4,883 mAh. This is rated capacity, which means the typical advertised capacity will be 5,000 mAh. So that's most likely what theiPhone Ultrawill boast.
Foldable iPhone concept running iOS with app icons.
Foldable iPhone concept running iOS with app icons.
Interestingly, it's on par with the rumored battery capacity of the Samsung Galaxy Z Fold8 Ultra, even though that has a different aspect ratio (it is in fact the successor to theGalaxy Z Fold7from last year). Samsung's direct iPhone Ultra competitor is the Galaxy Z Fold8, which is rumored to have a 4,800 mAh battery. The iPhone Ultra is expected to be unveiled in September alongside theiPhone 18 ProandiPhone 18 Pro Max. Despite some past rumors claiming it would be delayed, the latest reports all suggestit will arrive as scheduled. Source(in Chinese) |Image source
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