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Apple’s long‑rumored foldable iPhone — often called the iPhone Fold — could arrive with a much larger battery than current iPhone flagships. Recent leaks point to battery packs well above the capacities we see today, a sensible move given the Fold’s expanded displays.
Why the iPhone Fold would need a bigger battery
Insiders say Apple is testing the Fold with cells in the 5,400–5,800mAh range, which would already outsize the iPhone 17 Pro Max’s 4,823mAh unit (the eSIM‑only 17 Pro Max reportedly uses a 5,088mAh cell). Some sources believe Apple could still push the final battery closer to about 6,000mAh before shipping.
The hardware makes the reasoning obvious: the Fold is rumored to feature a 7.58‑inch inner display plus a 5.38‑inch cover screen. Running two large panels, a hinge mechanism and the software that ties them together increases power draw, so a bigger battery helps preserve day‑long use.

Apple has adjusted battery sizes during development in the past — early iPhone Air prototypes reportedly used around 3,000mAh cells, but the production model shipped with a larger pack. The Fold could follow a similar path: initial prototypes with mid‑range cells, then an upgrade in the final design.
Release timing still varies by report. Some leaks suggest a 2026 launch, while others push the debut to 2027. Regardless of the date, a 5,400–6,000mAh battery would mark a notable step up for iPhone battery capacity and make Apple’s foldable a stronger competitor against large‑battery Android foldables.
Source: gsmarena
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