iPhone 17 40W Power Adapter - USB C Cable Manufacturer-Wandkey

Are you tired of waiting for your phone to charge? I was too. My phone always died at the worst times. This slow charging was a huge problem for me.
The new iPhone 17 comes with a major charging upgrade. The new 40W USB-C power adapter charges your phone much faster than before. It uses a new charging method that makes the charging process more effective.
This is a big step up for all iPhone users.This 40W power adapter is a game changer for iPhone power. But you might have some questions about it. Let’s look at what this new charger can do for you. We can also see why it is so special.

What are the benefits of a 40W power adapter?

A 40W adapter enables higher voltage steps and steadier current under AVS, so iPhone 17 fills faster while the new charge-pump design limits heat. Users see shorter time to a usable level, better performance while charging, and fewer thermal slowdowns than older setups.

New Charging Protocols

The new AVS protocol is an important change. It is an upgrade from the old PPS protocol. It helps the charger give more power. Look at the table below to see the difference.

Protocol	Power Delivery	Efficiency	Heat Reduction
PPS	Good	Fair	Good
New AVS	Better	Excellent	Better

Why the jump matters

Apple brought charge-pump topology to iPhone 17. That matters because the phone can turn higher voltage into battery power more efficiently. It wastes less energy as heat. When the charger also supports AVS (an advanced, PPS-like variable supply), the phone can ask for the exact voltage it needs across a wider range. This smooth control helps the phone stay cool while still pushing more power.

Is the iPhone 17 40W adapter compatible with older models?

The 40W Apple adapter remains USB-C PD-compliant and will charge older iPhones and many other USB-C devices. Older iPhones will draw only what they support, so they will not “force” 40W. Compatibility is broad, but speed falls back to each device’s ceiling.

How fallback works

USB-C Power Delivery negotiates voltage and current. If an older iPhone supports lower PD or PPS levels, the charger will drop to those levels. No hacks. No risk. The “smarter” charger does not push power your device cannot accept.

For example, an older iPhone 14 might only take 20W. The new 40W charger will only give it 20W. This is safe. It will not hurt the old phone. The charger works because it uses USB Power Delivery. This is a common standard. Many phones and devices use it. The new AVS protocol is what lets the power go up to 60W. This new charger is a good buy for the future. It works with your old devices now.

Does the iPhone 17 come with a 40W adapter in the box?

No, the iPhone 17 does not come with a 40W adapter in the box. Like with past models, you only get the phone and a USB-C to USB-C cable. You need to buy the new 40W power adapter separately.

Apple has stopped including a power adapter with their phones. They say this is for two reasons. One reason is to help the environment. It reduces waste. Many people already have an old charger. The other reason is to save money on shipping. The box is smaller and lighter without the charger. This helps them ship more phones at once. So, if you buy a new iPhone 17, you will need to buy the 40W charger separately. The charger is made for the iPhone 17. It is the best choice to get the fastest charging speed. You can also use other chargers. But they may not be as fast. The new charger works with a special protocol. This protocol is AVS. It is a new technology. This is why you need the new charger. It is the only way to get the full power. This is also why other chargers might not work as well. They do not have the right protocol. So, to get the best experience, you must buy the new charger.

How fast does the 40W adapter charge your iPhone 17?

Everyone wants to know one thing: how fast will this new charger be? Up to 50% charge in 20 minutes with a 40W power adapter or higher

The 40W adapter charges the iPhone 17 very fast. It can give a huge power boost in a short time. This is because it uses turbo mode charging. This mode can give a lot of power when the phone needs it the most.

The iPhone 17 40W adapter has two power levels. Its normal power is 40W. But it has a turbo power level of up to 60W. This turbo power is only used at certain times. It happens when the phone and charger both agree to use the special AVS protocol. When they agree or handshake, the phone gets a lot of power. This is a new feature. It makes charging very quick. The charger’s power levels are very specific.

Input: 100-240V~50-60Hz,1.5A(USB PD)
Output: (AVS)15.0-20.0Vdc, 2.0A [3.0A DPS]
or (AVS)9.0-15.0V dc, 2.67A[3.0A DPS]
or 9.0V dc，3.0A or 5.0V dc，3.0A
Max Output 60W

The highest voltage is 20V. This is new for an Apple charger. Higher voltage means the charger needs more expensive parts. These parts make the charger better and safer. It also helps it to give more power. This is why the new charger is so much better than the old ones. It is a new design.

What USB-C cable specs should I choose?

Use a PD charging support USB-C to USB-C cable rated for at least 3A. with an E-Marker if it is long or if you also use it for higher-power devices. Keep length practical (1–2 m). Avoid USB-A to USB-C for fastest AVS behavior.

Not all USB-C cables are the same. Some are thin and cheap. They can only handle a small amount of power. For the iPhone 17, you need a cable that can handle a lot of power. This means you need a cable that supports at least 60W. The new Apple 40W charger can push up to 60W in turbo mode. So, a 60W cable is a good choice.

The cable that comes in the iPhone 17 box is a good one. It is made to work with the new charger. It is best to use this one. If you need a longer cable, you must buy a high-quality one. Do not buy a cheap cable. It will not work well. It might even get hot and be a fire risk. A good cable is important.

What matters in a cable

Length, build, and the tiny E-Marker chip matter. At 1 m, many quality 3A cables work well. At 2 m or more, an E-Marker helps the charger and phone negotiate higher current safely. I also check strain relief and jacket quality because I travel a lot.

Data rate does not equal charge rate

Some “USB 2.0” charging cables still deliver full 5A power. Data speed and power are separate. For my iPhone, I focus on power rating first, then data needs second.

Cable cheat sheet

Use case	Recommended rating	E-Marker	Data spec
Everyday phone charging (1 m)	3A (60W)	Optional	USB 2.0+
Desk + laptop share (2 m)	5A (100W)	Yes	USB 2.0/3.x
Travel one-cable setup	5A (100–240W)	Yes	USB 2.0/3.x

I avoid old USB-A to USB-C cables when I want the fastest path. They can charge, but they do not support the richer PD/PPS/AVS steps that make iPhone 17 shine. For cars, I use a short cable and a PD car charger, not a legacy USB-A port.

Is a 40W power adapter worth the upgrade for my iPhone?

I already have a 20W charger. I wondered if I should spend money on the new 40W one. I wanted to know if it was really worth it. The 40W adapter is worth the upgrade for most people. It is a smart choice for fast charging. It can save you a lot of time.

For most users, buying a new 40W charger is a good idea. The main reason is time. The faster charging saves you a lot of time. You can get a quick battery boost before you go out. This is very helpful. The new charger also uses a new technology. This technology is the AVS protocol. It will be important for future devices. So, buying the new charger now gets you ready for the future. Many charger companies will also start to make chargers that use this AVS protocol. This will make it easier to find good chargers later. This shows that the AVS protocol will become a new standard. It is a change in the market. Apple’s move to AVS shows what the future of charging will be.

Conclusion

The iPhone 17 40W adapter is a big change. It uses new tech for fast charging. This new charger is a smart buy for speed and future use.

FAQ

Q1: Can I use a third-party 40W charger with the iPhone 17?
A: Yes, but it must support the new AVS fast charging protocol. If it does not, it will only charge at a lower speed.

Q2: Will the 40W adapter hurt my iPhone battery over time?
A: No, the charger and phone both have smart chips. They work together to manage power and heat. This helps to protect the battery.

Q3: How can I tell if a charger has AVS?
A: You should check the product description. The company will list what protocols the charger supports. Look for AVS or something similar.

Q4: What is AVS and how is it different from PPS?
A: AVS is an advanced variable supply profile that lets the phone request fine-grained voltage steps across a wider range. It is similar to PPS in spirit but tuned to the iPhone 17’s needs and Apple’s adapter. The result is smoother control, less heat, and faster early charging.

Q5: Can I use my MacBook USB-C charger with iPhone 17?
A: Yes. If it supports PD, it will charge the phone. The phone only draws what it needs.

Q6: Is the 40W adapter backward-compatible?
A: Yes. It follows USB-C PD rules. Older iPhones charge at their own max rate. Many tablets, earbuds, and other devices will also charge safely.

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