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

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

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

Photo Credit: Apple

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.

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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.

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.

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.

 
REVIEW
  • 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
 
KEY SPECS
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
NEWS
REVIEW
  • Design
  • Display
  • Software
  • Performance
  • Battery Life
  • Camera
  • Value for Money
  • Good
  • Outstanding battery life
  • Excellent sustained performance
  • Versatile cameras with new Pro controls and amazing video recording support
  • Excellent display
  • Faster wired charging
  • Bad
  • Design-wise, too similar to the 17 Pro Max
  • Large and noticeably heavy
  • Expensive, especially in India
  • Limited real-world gains from the new camera hardware
  • Long-range zoom still trails some rivals
 
KEY SPECS
Display 6.90-inch
Processor Apple A20 Pro
Front Camera 18-megapixel
Rear Camera 48-megapixel + 48-megapixel + 48-megapixel
RAM 12GB
Storage 256GB, 512GB, 1TB, 2TB
OS iOS 27
NEWS

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