Updated
Updated · 9to5Mac · Sep 19
Apple Adds iPhone 18 Pro Max Shipping Mode for Batteries Over 20Wh
Updated
Updated · 9to5Mac · Sep 19

Apple Adds iPhone 18 Pro Max Shipping Mode for Batteries Over 20Wh

3 articles · Updated · 9to5Mac · Sep 19

Summary

  • Apple published a support document detailing a new “Prepare to Ship” option for iPhone 18 Pro Max, letting users ready the phone for returns, repairs, trade-ins, resale or gifting.
  • The feature exists because the model’s single-cell battery exceeds 20 watt-hours, a threshold that triggers extra shipping rules in most countries and regions.
  • Prepare to Ship discharges the battery below 20Wh and applies a charge cap; the process can take a few minutes or up to a couple of hours from a full charge.
  • Apple said the phone may run warmer while discharging, remains usable during the process unless erased, and shows a red “Ready to Ship” badge when complete.
  • The same compliance logic applies from the factory: firmware keeps capacity below 20Wh in transit, then unlocks full battery capacity when the user activates the device.

Insights

A software lock temporarily restricts the iPhone 18 Pro Max battery, but could this hidden firmware secretly impact your device's long-term health?
Apple's new iPhone battery is so large it triggers flight rules, but can software truly neutralize a physical fire hazard in the sky?
With the iPhone 18 Pro Max requiring a special transit mode, will airlines soon demand proof your device is restricted before boarding?