Can I charge iPhone 15 base using 67watt macbook pro charger?

Hey ayusha259,

The iPhone will only pull what power it needs from the charger, and depending on your cable used and the charger, you may be able to fast charge it. There's no risk of damaging or overcharging the phone provided it's a reputable charger. If it's an Apple branded MacBook Pro charger it'll be fine.

See more info here: Fast charge your iPhone - Apple Support

Cheers!

Well, I also thought of the same idea. I plugged my iPhone 14 (bought it 4 weeks ago) into a fast charger of my car with about 70 Watts. Thought the phone would handle it and everything will work, but well, it quite didn’t. As soon as I plugged in my apple usb-c charging cable the phone became really hot, and even if it was charging pretty fast, it got warmer and warmer so I unplugged it after 2 minutes. Now I noticed that my battery drains way way faster than before, before I always charged it using an older 12W apple charger. since then my iPhone discharges way faster than before….

Little update. Can't seem to edit my post.

The old iPhones operated at 1A x 5V = 5W so the 5.2V may be a little quick and cause them to heat up. The new iPhones regulate between a fast but hot 2A x 9V = 18W and a cool but slow 2A x 5V = 10W. Again the 5.2V of the MacBook charger may cause it to charge a little hotter. As long as it's under 50 degrees, all will be ok. At a guess, I'd say the volts of your 70W car charger are too high and it is therefore pushing out amps too fast. Probably designed for android phones. I suggest buying a new car.

so would it also be ok to charge my iPhone 15 with my MacBook Pro 87w charger? because i don't want it to affect the health of my phones battery

No it won't harm the phone. The phone won't draw more power than it is designed to.

Also see the following from Charge your iPhone with the USB power adapter of an iPad or Mac laptop - Apple Support

You can use Apple USB power adapters for iPad and Mac laptops to charge iPhone, Apple Watch, AirPods, and other Apple products.

Watts are Amps x Volts (eg. 10W is usually 2A x 5V). If the charger's amps exceed what a device needs, the device will only draw and the charger will only supply what the device needs so both the charger and the device will be ok as others have said. If the device requires more amps than the charger supplies, the draw will cook the charger but the device will be ok. The issue for a device is the Volts of the charger, which is the speed at which the amps are pushed. If the charger supplies amps too fast for a device, the push will fry the device but the charger will be ok. If the volts are too low the device will not charge and nothing will happen to the device or charger.

Most devices operate off 5, 9 or 12V. MacBook chargers supply amps at 20.2V, 9V, or 5.2V. The old iPhones operated at 5V so the 5.2V may be a little high and cause them to heat up. The new ones regulate between a cool but slow 5V and a fast but hot 9V. With this sort of regulation, new iPhones will like some chargers more than others in terms of speed and heat but as long as they are around the mark all should be ok. At a guess, I'd say the volts of your 70W car charger are too high and it is therefore pushing out amps too fast.

This should reassure you:

Charge and connect with the USB-C connector on your iPhone 15 - Apple Support

I always use my ipad charger to charge my iphone 15 pro, however I experienced 4 times the iphone frozen when it is idle, even updated ios to 17.2. In the past, iphone may only frown when you are using it, so you knew it was frozen and you simply restart it. Now, it frozen when it is idle but charging. It you rely on its alarm clock to wake up, it will be terrible as it may simply frozen while you are sleeping.

Can i use iphone 15 pro max using 67 watt

Sure, but the phone will not charge any faster than a 25 W power adapter.

Typo above: updated to ios 17.1

It’s working and charging very quickly was at 31% 5 min later am at 51%