Yes. First, it's called a Power Adapter, not a Charger. It doesn't push power into the iPhone. It supplies power. All iPhones have the charger built-in, and this charger draws power from the power adapter. Power supplies are just there to supply whatever power is drawn from it by the iPhone's charger, and the charger (which is inside the iPhone) is designed to be able to draw a maximum of 20-something watts. So if you have a 35W power adapter, then it means your iPhone will be able to draw the maximum amount of power that it's capable of since the power adapter is capable of supplying up to 35W. It doesn't mean your iPhone will be forced to charge with 35W. It means it can charge with as much power as it's capable of charging with, in this case no more than 20-something (I apologize but I don't know the exact amount - like I think the iPhone 15 Pro can go as high as 27W). So yes, it's safe to use a power adapter that can supply far more than the iPhone can draw from it. This is what you want so that you can get the fastest charging speed that the iPhone is capable of. If you used a 20W power adapter, then your iPhone would be limited to an absolute maximum of 20W. Answer from TwoCables_from_OCN on reddit.com
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Reddit
reddit.com › r/iphone15 › can i use a 35 watt charger for my iphone 15?
r/iphone15 on Reddit: Can i use a 35 watt charger for my iPhone 15?
July 3, 2024 -

I recently bought a second hand iphone, didn’t receive the official charging cable and neither a power brick. So i went to a local shop to get one, they handed me a 35 watt third party charging set from a random Chinese brand. After buying it, only then did i realize that iPhone supports only up to 20 watts of charging .will using this charger affect my battery health in the long run?

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Amazon
amazon.com › iPhone-Charger-Block-USB-C-Charing › dp › B0C9D46P3R
Amazon.com: iPhone 15 Pro/15 Pro Max Charger, 35W USB C Charger Block with 10ft USB-C to C Fast Charing Cable for iPhone 15/15 Pro/15 Pro Max/15 Plus, iPad Pro 12.9/11, iPad Air 5/4, iPad 10 : Cell Phones & Accessories
Buy iPhone 15 Pro/15 Pro Max Charger, 35W USB C Charger Block with 10ft USB-C to C Fast Charing Cable for iPhone 15/15 Pro/15 Pro Max/15 Plus, iPad Pro 12.9/11, iPad Air 5/4, iPad 10: Wall Chargers - Amazon.com ✓ FREE DELIVERY possible on ...
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CellularPort
store.cellularport.com › products › 15-pro-max-charger-35w
15 Pro Max Charger (35W) – CellularPort
15 Pro Max Charger (35W)
Power up your iPhone 15 Pro Max with our 35W charger. Fast, efficient, and reliable, it ensures your device stays charged whenever you need it. Upgrade your charging experience today!
Price   $14.99
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Reddit
reddit.com › r/iphone15pro › is it safe to charge my iphone 15 pro max with a 35w charging brick?
Is it safe to charge my iPhone 15 Pro Max with a 35w charging brick? : r/iPhone15Pro
September 30, 2021 - It’ll use the wattage it can suck up. ... Yes it's safe. It will not charge with 35W. At most, it'll peak at 27W. ... It’s safe even if you use a 500w charger because the phone can only accept 20W maximum.
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Apple Support
support.apple.com › en-us › 102574
Fast charge your iPhone - Apple Support
Testing conducted by Apple in August 2024 using preproduction iPhone 16, iPhone 16 Plus, iPhone 16 Pro, and iPhone 16 Pro Max units and software, USB‑C Charge Cable with Apple USB-C Power Adapter (20W Model A2305), and Apple MagSafe Chargers (1-meter Model A2580 and 2-meter Model A3250) with ...
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Amazon
amazon.com › iPhone-Charger-Compact-Block-Galaxy › dp › B0CGRBXSK6
Amazon.com: iPhone 15 Charger, 35W USB C Compact GaN PD Fast Charger, PPS Wall Charger Block for iPhone 15 Pro/15 Pro Max/15/15 Plus, iPhone 14 Pro Max/14 Pro/13 Pro Max, Galaxy S23/S22 : Cell Phones & Accessories
Buy iPhone 15 Charger, 35W USB C Compact GaN PD Fast Charger, PPS Wall Charger Block for iPhone 15 Pro/15 Pro Max/15/15 Plus, iPhone 14 Pro Max/14 Pro/13 Pro Max, Galaxy S23/S22: Wall Chargers - Amazon.com ✓ FREE DELIVERY possible on eligible ...
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Apple Community
discussions.apple.com › thread › 255305253
35w charger affect iPhone 15 Pro Max for … - Apple Community
if I use 35w charger for iPhone 15 Pro Max for a long time uses will that affect my phone battery in the feature because we have seen fast charging can affect the long time usage.
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MacRumors
forums.macrumors.com › news and article discussion › macrumors.com news discussion
iPhone 15 Pro Models Reportedly Max Out at 27W Charging Speeds Despite 35W Rumor | MacRumors Forums
September 17, 2023 - In the U.S., the adapter is priced at $39 on Apple's online store. Real-world tests still need to be completed, but for now it appears the 35W rumor was wrong. All of the new iPhone 15 models launch on Friday, September 22.
Find elsewhere
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Apple Community
discussions.apple.com › thread › 255128840
iPhone 15 Pro Max Fast Charging - Apple Community
To fast charge the new iPhone 15 Pro models a 20w USB C charging plug is all you need. Anything higher won't charge the phone any faster. ... Some of the chargers can put through up to 26 watts, looks like the average is around 25 on the upper end
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Apple Community
discussions.apple.com › thread › 255200661
Standard charger wattage for iPhone 15 - Apple Community
You will probably need to look at a Lightning to USB-C adaptor so you can continue to use your existing Lightning cables from a previous iPhone. Apple list a suitable device on my home store (UK) and it will exist in other regions but you might have to search ...
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Chargerlab
chargerlab.com › charging-review-of-iphone-15-pro-max
Charging Review of iPhone 15 Pro Max - Chargerlab
September 29, 2023 - Even the lowest-powered 20W charger reaches its own limit. Overall, the power output hovers around 25W, very stable. Next, we'll use the Apple 35W Dual USB-C Traditional Power Adapter to fully charge the iPhone 15 Pro Max.
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Reddit
reddit.com › r/iphone › i tested iphone 15 pro max fast charging with different power bricks, but this time i did it properly!! which brick gives the most power and which is the most efficient ?
r/iphone on Reddit: I Tested iPhone 15 Pro Max Fast Charging with Different Power Bricks, but this time i did it properly!! Which brick gives the most power and which is the most efficient ?
October 15, 2023 -

Hey everyone,

About 12 days ago, I set out on a mission to find out which charger among my collection was giving my iPhone 15 Pro Max the most power. What I didn't realize at the time was that measuring the power the brick draws from the wall is just one piece of the puzzle ( thank you u/janxb) . The real revelation is in how much power is delivered to the phone itself. Today, after finally getting my hands on a USB C multifunction tester, I'm ready to share the results with you.

I created some rankings for both power delivered to phone and brick efficiency.

You may remember this picture from the initial test, these are the bricks that i tested and how much they draw from the wall.

Bricks ranked by power delivered to phone:

1) Ugreen CD224 65W charger25.737 W
2) Apple Brick 96W (2019)25.031W
3) Apple Brick M2 MAX24.514 W
4) Samsung EP-TA80023.163 W
5) Apple 20W charger19.09 W
6) Apple 18W charger17.113 W

Bricks ranked by power efficiency:

1) Apple Brick 96W (2019)89 %
2) Apple 18W charger88.2 %
3) Samsung EP-TA80086.1 %
4) Apple 20W charger81.9 %
5) Ugreen CD224 65W charger81.8 %
6) Apple Brick M2 MAX79.5 %

The individual charger measuring are here:

  1. Ugreen CD224 65W charger

wall draw - 31.4-31.7 W

delivered to phone - 25.686-25.737 W

Charger efficiency - 81.8 %

Wattage lost - 5.7W

2) Apple Brick 96W (2019)

wall draw - 28.1 W

delivered to phone - 25.031W

Charger efficiency - 89 %

Wattage lost - 3W

3) Apple Brick M2 MAX

wall draw - 30.8 W

delivered to phone - 24.514 W

Charger efficiency - 79.5 %

Wattage lost - 6.2 W

4) Samsung EP-TA800

wall draw - 26.9 W

delivered to phone - 23.163

Charger efficiency - 86.1 %

Wattage lost - 3.7W

5) Apple 20W charger

wall draw - 23.3 W

delivered to phone - 19.09 W

Charger efficiency - 81.9 %

Wattage lost - 4.2W

6) Apple 18W charger

wall draw - 19.4 W

delivered to phone - 17.113 W

Charger efficiency - 88.2 %

Wattage lost - 2.28 W

In conclusion, these results might change the way you think about charger performance. Not only does it matter how much power a charger draws, but also how efficiently it delivers that power to your device. It's a win-win situation if you find a charger that delivers a lot of power with high efficiency.

Feel free to ask if you have any questions or need more details on this charger efficiency test. Thanks for reading!

For me i'll stick charging with the Ugreen charger since all i care at some days is getting my phone charged as quickly as possible.

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Byteintocode
byteintocode.com › blog › iphone-15-pro-max-charger-what-watt-is-original-1764807258
IPhone 15 Pro Max Charger: What Watt Is Original?
December 4, 2025 - When it comes to charging your ... provide recommendations, and the key takeaway is that the iPhone 15 Pro Max supports fast charging up to 27W....
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Amazon
amazon.com › Charger-Compact-Adapter-Foldable-Charging › dp › B0DFWGJSTP
Amazon.com: iPhone 16 Pro Fast Charger,35W Dual USB-C Port Compact Power Adapter Foldable Rapid Wall Charger with 2Pack 10FT USB-C to USB-C Charging Cord for iPhone 16Pro/16Pro Max/15Pro/15Pro Max,iPad Pro : Cell Phones & Accessories
35W Dual USB-C Wall Charger,iPhone 16 15 Charger Fast Charging,PD 3.0 Foldable USB C Plug Cube with 2Pack 10FT USB-C to USB-C Charging Data Sync Cable for iPhone 15 16 Series Product Specifications: Model:PD-11 Material:PC Port:Dual Ports USB ...
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Amazon
amazon.com › Charger-Block-Charging-Adapter-Foldable › dp › B0CMXLSC71
Amazon.com: HAODEXING 35W Dual USB C Port Fast Charging Block Power Adapter PD Foldable USB Type C Plug Charger for iPhone 17 16 Pro Max 17pro 16 15 14 13 12 11Pro Max XS XR, iPad Pro : Cell Phones & Accessories
Amazon.com: HAODEXING 35W Dual USB C Port Fast Charging Block Power Adapter PD Foldable USB Type C Plug Charger for iPhone 17 16 Pro Max 17pro 16 15 14 13 12 11Pro Max XS XR, iPad Pro : Cell Phones & Accessories
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Apple Community
discussions.apple.com › thread › 255751722
What is the best charger for iPhone 16 Pro Max?
So using a charger higher than 35w won't provide charging at faster speeds. ... Best is subjective. It's true the new phones will be capable of charging faster with a 25w or 35w charger. It doesn't mean they charge better. It just means they can charge faster.
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Best Buy
bestbuy.com › site › searchpage.jsp
iphone 15 pro max charger - Best Buy
Shop for iphone 15 pro max charger at Best Buy. Find low everyday prices and buy online for delivery or in-store pick-up