The iPhone 15 uses USB-C, not the Lightning connector

Apple switched the iPhone 15 to USB-C starting in September 2023. Every model in the iPhone 15 line — the standard iPhone 15, iPhone 15 Plus, iPhone 15 Pro, and iPhone 15 Pro Max — charges through a USB-C port on the bottom of the phone.

This is a significant change. Every iPhone from the iPhone 5 through the iPhone 14 used Lightning, a proprietary connector that only worked with Apple devices and accessories made specifically for Apple. USB-C is the same standard used by Android phones, tablets, laptops, and most other electronics, so a single charger can now work across multiple devices in your home.

The iPhone 15 does not come with a charger in the box. You get the phone and a USB-C to USB-C cable, but you need to provide your own power adapter. If you already own a USB-C power adapter — from a recent iPad, MacBook, or Android phone — it will work with your iPhone 15.

Key Takeaways

  • iPhone 15 models charge via USB-C, the same standard used by most modern electronics, not Apple's older Lightning connector.
  • No charger comes in the box with an iPhone 15, only a USB-C cable, so you must use an existing adapter or purchase one separately.
  • Any USB-C power adapter will charge an iPhone 15, whether it came from Apple, Samsung, or another manufacturer.
  • Older Lightning cables and adapters do not work with iPhone 15 without an adapter, and Apple no longer sells Lightning accessories for new phones.
  • USB-C allows faster charging speeds than Lightning did, though the actual speed depends on the wattage of your power adapter.

What wattage power adapter you actually need

The iPhone 15 can charge at different speeds depending on the power adapter you use. A standard 5-watt adapter (the kind that came with older iPhones) will charge it, but very slowly — it may take 3 to 4 hours for a full charge.

Apple sells 20-watt, 30-watt, and higher-wattage USB-C adapters. A 20-watt adapter is the minimum for reasonable charging speed and will get you to 50 percent in roughly 30 minutes. A 30-watt adapter charges faster still. You do not need the highest wattage available; the phone will only draw what it needs, so a 65-watt adapter meant for a laptop will work fine and will not damage the battery.

If you already own a USB-C power adapter from another device, check its wattage on the back or bottom of the adapter itself. Anything 18 watts or higher will work reasonably well. If you have only older 5-watt adapters, buying a 20-watt USB-C adapter is a practical choice and costs between $15 and $25.

Wireless charging still works the same way

The iPhone 15 supports wireless charging through Qi, the same standard that worked on iPhone 8 and later. You can place your iPhone 15 on any Qi-compatible wireless charger pad or stand, and it will charge without plugging in a cable.

Wireless charging is slower than wired USB-C charging — typically 7.5 to 15 watts depending on the charger — but it is convenient for overnight charging or keeping the phone topped up on a desk. The USB-C port is still there if you need faster charging or want to use the phone while it charges.

If you have older Lightning accessories

Lightning cables and adapters from iPhone 14 and earlier will not work directly with iPhone 15. You have a few options if you want to keep using them.

Apple sells a Lightning to USB-C adapter for around $30, which lets you plug an old Lightning cable into the iPhone 15's USB-C port. This is useful if you have a favorite Lightning cable or a car charger with a Lightning connector, but it adds bulk and another piece to carry. For most people, it makes more sense to replace Lightning cables with USB-C cables as they wear out.

If you have a Lightning power adapter (the brick), you cannot use it with iPhone 15 at all. You need a USB-C adapter. Donate or recycle the old Lightning charger, or keep it for an older iPhone if you still have one.

Fast charging with USB-C

USB-C allows the iPhone 15 to charge faster than any previous iPhone model. With a 30-watt adapter and the included USB-C cable, you can reach 50 percent battery in about 25 to 30 minutes. With a 35-watt or higher adapter, charging is even quicker.

This speed assumes you are using a wired connection. Wireless charging remains slower, around 15 watts maximum, so it will not give you the same quick top-up. If you need your phone charged fast before leaving the house, plug it in with USB-C rather than placing it on a wireless pad.

The iPhone 15 Pro and Pro Max support slightly faster wired charging than the standard models, but the difference is small in real-world use. Both reach 50 percent in roughly the same time with the same adapter.

Buying a charger for iPhone 15

If you need to buy a new USB-C power adapter, you have choices. Apple's official 20-watt adapter costs around $20 and is reliable. Third-party brands like Anker, Belkin, and others sell USB-C adapters for $10 to $25 that work just as well and often include multiple ports so you can charge several devices at once.

When shopping, look for an adapter rated for at least 18 watts. Check the product listing or the back of the package for the wattage. Avoid adapters with no wattage listed, as they may be underpowered. If you travel frequently or want to charge multiple devices, a 30-watt or 65-watt adapter gives you more flexibility and costs only a few dollars more.

You can also use the USB-C cable that came with your iPhone 15 with any USB-C power adapter you already own — from a recent iPad, MacBook, or Android phone. This is often the cheapest option if you have other devices at home.

Frequently Asked Questions

Can I use my old iPhone Lightning charger with iPhone 15?

No, Lightning chargers do not work with iPhone 15. You can buy a Lightning to USB-C adapter for around $30 to use old Lightning cables, but you still need a USB-C power adapter. For most people, it is simpler to replace Lightning cables with USB-C cables as needed.

Do I have to buy an Apple charger or can I use any USB-C adapter?

Any USB-C power adapter works with iPhone 15, whether it is made by Apple, Anker, Samsung, or another brand. Third-party adapters are often cheaper and work just as well. Make sure the adapter is rated for at least 18 watts for reasonable charging speed.

What is the fastest way to charge an iPhone 15?

Plug it into a 30-watt or higher USB-C power adapter using the included USB-C cable. This reaches 50 percent battery in about 25 to 30 minutes. Wireless charging is much slower, around 15 watts, so wired charging is always faster if you are in a hurry.

Can I charge my iPhone 15 with a 5-watt charger?

Yes, but it will be very slow — typically 3 to 4 hours for a full charge. A 5-watt adapter is fine for overnight charging, but if you need your phone charged quickly, use a 20-watt adapter or higher.

Does iPhone 15 come with a charger in the box?

No. The box contains the phone and a USB-C to USB-C cable, but no power adapter. You need to provide your own USB-C adapter or use one you already own from another device.