iPhone 18 Pro Max gets Prepare to Ship mode for battery over 20 Wh

Apple added a Prepare to Ship feature to the iPhone 18 Pro Max: firmware limits battery capacity below 20 Wh during transport to meet international shipping rules. The limit is removed on activation, and for repair or trade-in shipments the charge is capped at 80% for 14 days.

• iPhone 18 Pro Max battery exceeds 20 Wh, triggering special shipping rules
• Capacity is limited below 20 Wh at the factory until activation
• For repair or trade-in shipping, charge is capped at 80% for 14 days
• The feature is enabled in Settings, General, Transfer or Reset iPhone