December 7, 2023

You may need hoped that Apple elevated battery charging speeds on the iPhone 15 fashions as a result of they arrive with USB-C charging ports as a substitute of Lightning, however that hasn’t occurred. As a substitute, Apple’s newest iPhones have the identical official max charging pace of 20W from earlier fashions.

That additionally implies that all iPhone 15 fashions will truly prime that 20W pace you probably have a suitable charger. It’s what Apple did with the iPhone 13 and iPhone 14. Speeds can surpass 25W, so you may get the iPhone to cost quicker with an influence brick that helps at the very least 30W. However how a lot quicker are we speaking about?

The next take a look at exhibits how briskly the iPhone 15 Professional Max takes to cost over USB-C with a number of completely different Apple chargers. It would enable you determine which equipment to purchase subsequent.

YouTuber Brandon Butch carried out the take a look at. He used 5W, 12W, 20W, and 30W chargers that Apple sells. The 5W wall adapter is the default iPhone charger Apple used to supply patrons at no cost. The 30W charger is one thing you’d use with the MacBook Air, as that’s the ability brick that ships with base fashions.

Butch used a tool to measure the highest charging energy for every charger whereas it was charging the iPhone 15 Professional Max. He additionally checked out how a lot warmth was generated by the telephones and the charger.

A chart displaying how lengthy it takes for varied chargers to recharge the iPhone 15 Professional Max. Picture supply: YouTube

The YouTuber’s findings are clear: you need to use a 20W or 30W charger as a substitute of the smaller bricks. Charging speeds won’t surpass 25W, so something larger than 30W won’t have any influence on charging occasions. Additionally, you don’t get the utmost energy all through the cost cycle — not even should you’re utilizing one of many lower-power fashions.

The iPhone 15 Professional Max wants 2 hours and 11 minutes to go from 0% to 100% utilizing the 30W charger. The 20W energy brick wants an extra 10 minutes to get the job accomplished. You’re taking a look at over 4 hours for the 12W charger and practically 6 hours for the 5W mannequin. The true benefit is {that a} 20W or 30W charger provides you with extra power throughout a fast top-up that lasts only some minutes.

iPhone 15 Pro Max's battery level after a 20-minute charge.
iPhone 15 Professional Max’s battery degree after a 20-minute cost. Picture supply: YouTube

However, the benefit of utilizing the 5W or 12W charger is that the iPhone doesn’t get as scorching because it does with quicker chargers. However the chargers themselves get hotter. In principle, utilizing low-powered chargers might enhance your iPhone’s battery well being. However the features is perhaps indiscernible and never definitely worth the sacrifice.

With all that in thoughts, going for a 20W or 30W charger is one of the best concept should you use wired charging. In case you don’t have 20W USB-C chargers (or quicker) round the home, you would possibly need to buy some and recycle/repurpose the lower-speed ones.

The take a look at didn’t contain wi-fi charging. MagSafe chargers will recharge the iPhone 15 Professional Max at 15W.

Temperature readings for the iPhone 15 Pro Max and the various chargers used in the test.
Temperature readings for the iPhone 15 Professional Max and the varied chargers used within the take a look at. Picture supply: YouTube

I take advantage of each wired and wi-fi charging with my iPhone 14 Professional, which additionally helps unofficial speeds of over 20W. I depend on the identical multi-port 100W charger that recharges my Mac to cost the iPhone.

I may also remind you of the battery well being options obtainable on iPhone 15 fashions. You would possibly need to forestall the iPhone 15 Professional Max from reaching 100% when charging. Meaning you’ll get to 80% quicker with a 30W charger than the two hour 11 minutes estimate. Your battery life will take a success, however the battery will degrade slower.

Take a look at the complete video beneath to see this iPhone 15 Professional Max battery cost take a look at in full.