TechApple’s software workaround lets iPhone 18 Pro Max batteries avoid shipping limits

Apple’s iPhone 18 Pro Max uses a firmware lock to keep its single-cell battery below the international 20Wh shipping limit. The restriction disappears after first activation, restoring rated capacities of about 21.75Wh for US eSIM-only models and 21.06Wh for European models. A “Prepare to Ship” setting can reinstate the charging cap for repairs or resale.

AppleiPhone 18 Pro Maxbatteriesshipping regulations

TThe Verge★★☆☆☆2026-09-21 12:37Original