- iPhone 18 Pro packs a 4,056 mAh battery, up 1.7% from the previous generation.
- iPhone 18 Pro Max gets a 5,391 mAh battery, up 11.7%.
- EU labels also confirm A energy efficiency, IP68 protection and at least 1,000 battery cycles.
Though Apple likes talking about the battery life while unveiling its iPhone, it has refused to tell one detail, which consumers need to know, about the capacity of its batteries. So, if you’re among the ones looking for the iPhone 18 Pro series battery sizes. We have brought official details; this time, Apple’s EU documentation has done the work for us. Let us teardown the battery capacity.
iPhone 18 Pro series battery capacity finally comes to light
As per the official EU energy documentation, the iPhone 18 Pro has a battery of 4,056mAh and the iPhone 18 Pro Max has a significantly bigger battery of 5,391mAh.
A comparison with the older models would make the changes more fascinating. The iPhone 17 Pro was equipped with a 3,988 mAh battery, which means that the iPhone 18 Pro will see a mere 68 mAh increase—1.7%.
The situation with the Pro Max will be quite different. The 5,391 mAh battery is a 568 mAh increment from the 4,823 mAh in the iPhone 17 Pro Max.
| Model | Battery | YOY Increase |
|---|---|---|
| iPhone 18 Pro | 4,056mAh | 1.7% |
| iPhone 18 Pro Max | 5,931mAh | 11.7% |
If endurance matters to you, then that might be one of the most significant changes in hardware in the latest Pro series.
Importance of SIM Tray
Here is the one thing to remember. The official capacities are for phones with the physical SIM tray. Apple employs eSIM-only devices in regions like the US, Canada, Japan, Mexico, and some Gulf countries. Since eSIM-only devices don’t have the physical SIM hardware, Apple is able to increase battery capacity by utilizing the extra space inside.
Official capacities for eSIM-only devices are not announced yet
Battery endurance information by Apple: there is more information provided in this case by the EU than mAh capacity. The battery endurance rating for the iPhone 18 Pro Max is 62 hours per cycle, while for the 18 Pro it is 52 hours using the EU standardized test conditions.
The two devices come with an A rating for energy efficiency, a B rating for all resistance, a C rating for repair, and an IP68 level of protection. Batteries in iPhones are guaranteed for 1,000 charge cycles. Thus, while the capacity of the iPhone 18 Pro series battery is quite impressive, it will be the performance that is really determined by the A20 Pro chipset and displays on the end.
Overall, looking at the figures, it’s very evident that Apple has provided the Pro Max of the iPhone 18 generation a much bigger capacity than before, but just a slightly higher capacity for the regular Pro. This may make the Pro Max more intriguing to heavy users. I hope you do find this story helpful; kindly let me know your thoughts in the comment section.
Keep up with the tech that actually matters.
Add us as a preferred source on Google Search for quicker access to our coverage.
