iPhone 15 Pro Max Charges Only 10 Minutes Faster with 30W vs 20W Charger
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iPhone 15 Pro Max battery charge test shows minor difference between 20W and 30W chargers.
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30W charger faster by only 10 minutes (2hr11min vs 2hr21min) to fully charge iPhone 15 Pro Max.
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Gap never exceeded 4% charge between 20W and 30W during test.
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20W charger more compact and fits better in tight power outlets.
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20W charger provides best balance of speed and portability for iPhone 15 Pro Max.
![](https://9to5mac.com/wp-content/uploads/sites/6/2023/09/iPhone-15-Pro-Max-no-power-USB-C-cable-braided-message.jpg?quality=82&strip=all&w=155)