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iPhone 18 Pro Max Charging Test Shows Major Speed Boost Over iPhone 17 Pro Max

iPhone 18 Pro Max Charging Test Shows Major Speed Boost Over iPhone 17 Pro Max

The iPhone 18 Pro Max can be fully charged in under an hour when using the right gear

Written by Sheldon Pinto, Edited by Rohan Pal | Updated: 18 September 2026 14:37 IST

iPhone 18 Pro Max Charging Test Shows Major Speed Boost Over iPhone 17 Pro Max

Photo Credit: Apple

The Apple iPhone 18 Pro Max was launched at Rs. 1,79,900 in India

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Highlights

Apple’s iPhone 18 Pro Max has a 5,391mAh lithium-ion battery
Individual testing has revealed that it can be fully charged in under an
The phone is advertised to charge at the standard PD 3.2 speeds

Apple has launched its iPhone 18 Pro Max with several upgrades this year. As the largest Pro model in Apple's smartphone lineup, the iPhone 18 Pro Max also has the largest battery: 5,391mAh in the nano SIM model and 5,567mAh in the eSIM-only model. Independent battery-charging tests by a YouTuber show that the iPhone 18 Pro Max can charge even faster than advertised with the right charging gear. Apple recommends using its 40W Dynamic Power Adapter or 60W Max adapter while charging its iPhones.

iPhone 18 Pro Max Charging Test Reveals Faster 0-100 Percent Charging

Tipster Ice Universe spotted the test, which was conducted by a YouTube channel called Xiaobai's Tech Reviews. The test conducted by the channel reveals that the iPhone 18 Pro Max can be charged from 0 to 100 percent in as little as 55 minutes. The video also claims that last year's iPhone 17 Pro Max reached a ‘fully charged' state in 81 minutes.

Apple Iphone 18 Pro Max Discussion

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The publication's battery tests showed the iPhone 18 Pro Max reached 34 percent charge in 10 minutes, 50 percent in 15 minutes, and finished charging in 55 minutes. For reference, the iPhone 17 Pro models took 20 minutes to reach 50 percent.

iPhone 18 Pro Max US Model Reportedly Misses Apple’s C2 Modem

Another detail to keep in mind is that the iPhone 18 Pro Max reached a peak charging speed of 52W. However, the video also shows this was a short burst that lasted only 12 minutes.

According to Apple's official website, its iPhone 18 Pro and 18 Pro Max models are capable of charging to 50 percent in 15 minutes when using a capable 60W adapter or higher, with Adjustable Voltage Supply (AVS). This charger would be the 40W Dynamic Power Adapter, which recently went on sale in India. Apple also claims a 50 percent charge in 30 minutes using its 35W adapter (or higher) when paired with a MagSafe Charger. None of these accessories are sold with the iPhones.

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The ‘40W Dynamic Power Adapter with 60W Max' costs Rs. 4,490 in India. It has retractable pins and a single USB Type-C port. Apple's 35W Dual USB-C Port Power Adapter retails at Rs. 5,800 and offers two USB Type-C ports.

iPhone 17 Pro Max

REVIEW
KEY SPECS
NEWS

Design
Display
Software
Performance
Battery Life
Camera
Value for Money

Good
The boldest redesign since the iPhone X
Bright and stunning display
A19 Pro under the hood guarantees excellent performance
Massive camera upgrade
Video quality gets a much-needed bump
Centre Stage camera at the front changes selfie game on iPhones forever
Improved charging speed

Bad
Aluminium body picks up scratches
Expensive
Heavier than the 16 Pro Max

Read detailed Apple iPhone 17 Pro Max review

Display 6.90-inch

Processor Apple A19 Pro

Front Camera 18-megapixel

Rear Camera 48-megapixel + 48-megapixel + 48-megapixel

RAM 12GB

Storage 256GB, 512GB, 1TB, 2TB

OS iOS 26

Resolution 1320x2868 pixels

More Apple mobiles Apple mobiles price in India

iPhone 18 Pro Max

KEY SPECS
NEWS

Display 6.90-inch

Processor Apple A20 Pro

Front Camera 18-megapixel

Rear Camera 48-megapixel + 48-megapixel + 48-megapixel

RAM 12GB

Storage 256GB

OS iOS 27

More Apple mobiles Apple mobiles price in India

iPhone 18 Pro

KEY SPECS
NEWS

Display 6.30-inch

Processor Apple A20 Pro

Front Camera 18-megapixel

Rear Camera 48-megapixel + 48-megapixel + 48-megapixel

Storage 256GB

OS iOS 27

Resolution 1320x2868 pixels

More Apple mobiles Apple mobiles price in India

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Further reading: Apple iPhone 18 Pro Max, Apple iPhone 18 Pro, Apple iPhone 17 Pro Max, Apple iPhone 18 Pro Max Battery, Apple iPhone 18 Pro Max Charging, Apple

Sheldon Pinto

Email Sheldon Pinto

Sheldon Pinto is based in Mumbai, and has several years of experience in reviewing smartphones and gadgets. As a Senior Reviewer at Gadgets 360, you will always find him deeply immersed in his reviews, switching from one phone to another. When the battery dies out, Sheldon is always browsing the web for a good sci-fi movie or reading up on cars and bikes. He also loves creating lists of interesting places to eat and travel. Sheldon is available on Twitter at @shellshocd, and you can mail him at ...More