Apple has added a firmware-based battery control and a new iOS 27 “Prepare to Ship” setting for the iPhone 18 Pro Max because its single-cell battery exceeds the 20-watt-hour threshold that triggers additional shipping requirements in many countries and regions [9to5mac.com][macobserver.com]. The firmware keeps the battery below 20 Wh from manufacturing through transport. After the phone is activated, the restriction is removed and its full capacity becomes available [9to5mac.com][antaranews.com]. The control also applies when owners send activated phones for repair, trade-in, return, resale or gifting. Owners must open Settings > General > Transfer or Reset iPhone and select “Prepare to Ship.” The process discharges the battery below 20 Wh and imposes a charging limit. Apple warns that the phone may become warmer while the discharge is underway [9to5mac.com][macobserver.com]. Highlights: • Regional capacities: Reported battery capacity is about 5,567 mAh, or 21.75 Wh, for the U.S. eSIM model and 5,391 mAh, or 21.06 Wh, for the European physical-SIM model [antaranews.com]. • Charge limitation: For some repair, return and trade-in shipments, the phone can limit charging to 80% for 14 days after the shipping process [antaranews.com]. "To address these requirements, iPhone 18 Pro Max uses an “innovative battery-firmware solution.”" — Apple Sources: • Protect Your iPhone 18 Pro For Less With 15% Off Three ESR Screen Protectors - redmondpie.com • iPhone 18 Pro Max Requires 'Prepare to Ship' Battery Drain Before Shipping - reddit.com • Our top iPhone 18 Pro accessories to upgrade your setup [Updated] - 9to5Mac - google.com • Here's how Apple got around shipping restrictions for the iPhone 18 Pro Max's large battery - GSMArena.com news - GSMArena.com - google.com • Apple’s iPhone 18 Pro Max repair manual is out, but you can’t buy the parts yet - macobserver.com • Apple says iPhone 17 Pro cases aren’t made for iPhone 18 Pro, over a 0.1mm gap - macobserver.com • DXOMARK scores iPhone 18 Pro 172, second only to the Huawei Pura 80 Ultra - macobserver.com • iPhone 18 Pro Max lasted 18 hours 27 minutes in an independent battery test - macobserver.com • Apple sets iPhone 18 Pro battery service at $129, up $10 from iPhone 17 Pro - macobserver.com • Run Prepare to Ship before you mail an iPhone 18 Pro Max, Apple says - macobserver.com • Our top iPhone 18 Pro accessories to upgrade your setup [Updated] - 9to5mac.com • iPhone 18 Pro Max’s battery is so big Apple had to add this new feature to iOS 27 - 9to5mac.com • Here's how Apple circumvented the battery shipping restrictions for iPhone 18 Pro Max - reddit.com • iPhone 18 too expensive? Here are 3 ways to make your old iPhone feel like new again - fastcompany.com • Apple iPhone 18 Pro vs. iPhone 17 Pro: To Upgrade or Not? - pcmag.com • iPhone 18 Pro, Apple Watch Series 12, Ultra 4, and AirPods 5 Now Available in Apple Stores - macobserver.com • Cara Apple akali pengiriman baterai iPhone 18 - antaranews.com • Hier sind das iPhone 18 Pro und Pro Max direkt verfügbar - macwelt.de • iPhone 18 Pro Max is here! First impressions and photos thread - macrumors.com • iPhone 18 Pro Max now on sale in India: Here are available offers - indiatoday.in • USA iPhone Duo & 18 Pro/Pro Max Pre-order/Shipping/Delivery Thread [MERGED] - macrumors.com • Tháo rời 'soi' linh kiện iPhone 18 Pro Max tại Việt Nam - vnexpress.net • Ist das iPhone 18 Pro dieses Mal wirklich nur ein Upgrade für Profis? - giga.de • iPhone 18 Pro開賣！分析師挺蘋果：換機周期優於預期 股價有13%上漲空間 - cnyes.com • OtterBox Cases Arrive for iPhone 18 Pro, Pro Max, and the New Duo - techaeris.com • Lý do iPhone 18 Pro Max xả gần hết pin trước khi xuất xưởng - thanhnien.vn • Here's how Apple circumvented the battery shipping restrictions for iPhone 18 Pro Max (Android makers can learn too) - reddit.com • iPhone 18 拿到手了吗？首选配件可以先安排上了 - ifanr.com • iPhone 18 Pro Max puni se brže nego ijedan Appleov telefon do sada - nezavisne.com • L’iPhone 18 Pro en vente dès vendredi : on a testé le dernier-né d’Apple - leparisien.fr • 蘋果稱 17 Pro 系列保護殼與 18 Pro 系列不兼容　有測試發現實際並非如此 - yahoo.com • Điểm tuần: iPhone 18 Pro Max lên kệ, màu Đỏ Burgundy cháy hàng tại Việt Nam - dantri.com.vn --- 📰 Story aggregated by Kagi News