GoKawiilApple uses firmware trick to ship iPhone 18 Pro Max's oversized battery
Apple's iPhone 18 Pro Max ships with a battery-firmware lock that caps capacity below the 20Wh threshold that triggers international shipping restrictions on single-cell batteries. Once a customer activates the phone for the first time, the lock lifts automatically, restoring the battery to its full rated capacity of roughly 21-22Wh depending on the model. A 'Prepare to Ship' setting can reimpose the cap, limiting charging to 80 percent over 14 days, for anyone sending the device in for repair or resale.
GoKawiil's interpretation of the reporting above, not reported fact.
This software workaround lets Apple pack a larger single-cell battery into a slimmer phone without the cost and space penalties of the dual-cell designs Android makers use to dodge the same shipping rule. If the approach proves reliable, it could push competitors toward similar firmware-based solutions rather than hardware compromises, changing how battery capacity limits are handled industry-wide.
- Apple's firmware lock keeps the iPhone 18 Pro Max battery under the 20Wh shipping limit until first activation.
- A 'Prepare to Ship' feature can reapply the charge cap for repairs or resale, capping charging at 80 percent for 14 days.
- The trick avoids the costlier dual-cell battery designs Android makers typically use to meet the same shipping regulations.
Apple iPhone 18 Pro Max — This is the very device at the center of the clever battery-firmware trick described in the article, boasting Apple's largest-ever iPhone battery capacity. If you're intrigued by how Apple squeezed extra battery life past shipping regulations, getting your hands on the iPhone 18 Pro Max lets you experience that engineering firsthand.
See Apple iPhone 18 Pro Max on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: theverge.com — Jess Weatherbed, 2026-09-21
Published there as: “Apple’s clever software solution lets iPhone batteries skirt shipping limits”
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