Can I Use a Different Power Adapter To Charge My iPhone, iPad or MacBook?

You can use almost any USB charger with your MacBook, iPhone or iPad. If the charger doesn't provide enough power your device may charge slowly. But a higher-powered device won't hurt. Quality does matter though, in how longer a charger will last before it may break.

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Video Transcript: Hi, this is Gary with MacMost.com.  Do you need to use the exact charger that came with your MacBook, iPhone, or iPad or can you use another? 
MacMost is brought to you thanks to a great group of more than 2000 supporters. Go to MacMost.com/Patreon. There you could read more about it. Join us and get exclusive content and course discounts.  
Now sometimes I've been asked about chargers for your battery powered Apple products like MacBooks, iPhones, and iPads. Now with iPhones you no longer get a charger in the box, but there is an official one you can buy from Apple. With the MacBooks you get one with the MacBook. Do you need to use that exact charger to charge your product or can you use another Apple charger or a completely different charger from a third party company?  
So basically all Apple products now charge using USB chargers. So you get a USB charger with a MacBook, for instance. You buy USB chargers from Apple to charge you iPhone and other Apple products. The charger itself has a USB port, usually a USB-C now, on it. Older Mac chargers have either USB-C or the rectangular USB-A port on them. So the basic answer to the question can you use any charger for any product is, more or less, Yes. You can. You can use a third party one. You can use an Apple one that is not the same that came with your device. You can use one the provides more or less power with just about any device. So different chargers provide different amounts of power. 
Usually this is measured in watts, but not always. But Apple uses watts. So, for instance, you can get a 35 watt charger from Apple, there is a 20 watt charger. A MacBook may come with something much larger like a 90 watt charger. This is more or less a measure of power to your device. Watts, amps, and volts are all related in a ratio. But volts is always 5 volts for USB devices unless you're talking about Quick Charge which I'll talk about in a few minutes. 
So if your MacBook came with, say, a 60 watt charger you can use a USB charger that is more than 60 watts or less than 60 watts. But if you use something that is less it's going to affect the charged speed. So, for instance, if you use a 20 watt charger on a MacBook that comes with a 60 watt charger you may notice it charges slower than using the 60 watt charger. If you go really, really low, like you use a USB charger from a small gadget that is even less than, say, 5 watts then you may notice that it's just not enough to charge your MacBook at all. 
If you go up in wattage, though, it won't damage your MacBook. Think of it like your MacBook pulls power from the device. So say if you use a 120 watt charger and your MacBook really only accepts up to 60 watts it's only going to pull 60 watts from that charger. The charger is not going to overload or overheat your MacBook. 
Another thing to think about is if you're using the MacBook at the same time as you are charging. Say if your MacBook usually uses a 60 watt charger and you happen to be using a 20 watt charger at the moment and you're actually using your MacBook. Now how much power your MacBook uses depends on what you're doing. So maybe if you're just reading an article on the web 20 watts may be enough to actually charge it while you're using it. But if you're editing video in Final Cut Pro you might find your Mac is actually using more power than it is taking in from the charger and the battery is slowly draining. 
Now while we're talking about MacBooks another important point I want to bring up is if you have a current MacBook its got a MagSafe power port that means you can use a special MagSafe adapter to magnetically connect to it. This is great because if somebody accidentally trips over the cable it won't pull your MacBook off of the desk. But you can still use the USB ports to charge. So, for instance while traveling I usually don't bring my MagSafe cable. I just have one charger for all my devices and that has got USB cable and I just plug one of those into the USB-C port on my MacBook Air and it charges from there. 
Now another thing about MacBooks is they can actually provide a charge to other devices. So you can use a USB-C port on your MacBook, plug your iPhone into it and your iPhone will actually collect a charge from your MacBook. You can do the same thing with other devices. Like, for instance, you can charge Air Pods from it. As a matter of fact you can even charge Air Pods from an iPhone. Just connect them with a cable and the Air Pods case will take a charge from your iPhone.  
Now another question I get sometime is about the two different types of USB ports. You'll see the rectangular USB-A port which has been around for a long time, and the new smaller USB-C port. The question is do you have to connect to the right one for the right device. The answer is No. You just need the right cable, of course, to connect to USB-A or USB-C. But power is provided through either one of those. So, for instance, if you've got a wall outlet that has USB-A, as most of those do, you can get the right cable or a small adapter and use that to charge up your MacBook. So the charger's type of port, USB-A or USB-C doesn't matter. It is the amount of power that comes out of it that determines how fast your MacBook will charge. But either one will work. 
What about quality? Does it make a difference if, say, it's a high quality well-made charger versus a cheap one. Well, it does. But probably not for the reason you're thinking. If the charger works it will provide power to your device and your device will be fine. However, low quality chargers do have a tendency to break. So that cheap charger you picked up at a gas station or airport because you forgot yours, that one may not last very long. Sometimes it may only last weeks or months, or may break almost immediately. Of course even a high quality charger can break and even a low quality one can last a long time. It's more about the chances of it lasting. The same is very true for the wall outlets that you can buy to replace the outlets in your home. Those sometimes now come with USB-A or USB-C charging ports. Those tend to be very cheap unless you spend money to get a high quality one. It's more of a problem when these break because then you actually have to replace the wall outlet again. You can't just swap the charger. 
Now, of course, a lot of Apple devices charge wirelessly now, particularly iPhones. You can use Apple's wireless MagSafe charger. These are magnetic and will stick to the back of your iPhone. But you don't need to use Apple's. There are a whole variety of different ones. Some of them are magnetic like this. But others are not. You rest your iPhone on them. As long as your iPhone is one that can charge wirelessly then it should work. Now these typically aren't the charger themselves. The charger is what is plugged into the other end of this. But it is good to know you don't need to get Apple's wireless connectors to charge your iPhone wirelessly. Also I find that a lot of people don't realize that you can use these to actually charge your Air Pods if they come with a wireless charging case. You can just rest them on here and you can use a third party one as well. You don't have to get a particular one for the Air Pods to work. Just note that the light is on and it is charging. 
But do note that wireless charging isn't as efficient as the wire charging. So if you're in a situation where you want to get every ounce of power out of something, like you take a battery pack with you and you want to charge up your iPhone using it, using a wireless charger is not going to get as much power out of that battery as using a wired charger. 
Now let's talk about Quick Charge for a minute. If you have a device like an iPhone that says it is compatible with Quick Charge and you have a power adapter that also is compatible with Quick Charge then you can rapidly charge your phone using a higher voltage than normal. Both the adapter and the device have to be compatible with Quick Charge for this to work. Otherwise they will just default to the regular 5 volt charging. So if you have an iPhone that works with Quick Charge and you want to get that speed for charging, then you want to make sure you buy a third party power adapter that also supports Quick Charge. 
So I hope that answers a lot of questions that people have about using different chargers, specifically third party chargers, or chargers that aren't the same power rating as what came with your device. Hope you found this useful. Thanks for watching.

Comments: 12 Responses to “Can I Use a Different Power Adapter To Charge My iPhone, iPad or MacBook?”

Cheryl Fleming

8 months ago

Very helpful information. Interesting how much confusion there is about this topic. An Apple Store team member once told me that using an iPad charger to charge my MacBook Pro could destroy the laptop. Thanks, Gary.

Roger Emnett

Gary,
Nice to know that I was correct in my assumption that almost any charger will work if you have the right cable. I have never had a problem.

I look forward to your Tutorials and always learn something. I am amazed that you are able to come up with something that is useful as well as well as informative.
Thank You

Warren Nagourney

Thank you for this informative article, and thanks for mentioning the inefficiency of inductive (erroneously called wireless) charging. Someone did a study and found that the efficiency of inductive charging was rarely above 60-70% and was very dependent upon the positioning of the phone over the charger (dropping to zero if the positioning is poor). MagSafe helps with this, but still doesn't provide nearly the efficiency of a direct connection.

Ken O. Bowman

Great explanation. Thank you.

Gustavo 🇦🇷

Great session !!! Love it always get confusing. One warning about magnetic charger, is to have the right iPhone protector: the goal is to avoid overheating (makes your battery life miserable). One question is regarding the "multiple charging docks": will make any difference, any comments? I'm still worried about charging mi iWatch (or iPhone) with a MacBook charger. Thanks Gary !!!

Gary Rosenzweig

Gustavo: Not sure what you mean by "multiple charging docks." Do you mean power supplies that offer more than one USB port? Those are perfectly fine to use.

Fran

Thank you for a great, simple, straight forward instructional video. You answered a number of questions I have long wondered about. I appreciate that your videos, while they support the Apple environment, explain it without blinding prejudice to any specific company and helps to dispel any misconceptions. Your explanations are clear and concise... and I understand your passion and need for expediency but there is always the pause and replay option that can be used. Thank you.

Steve

I always stay with original Mac chargers, cords etc. Small price compared to MacBook Air cost.

joe gerardi

Had an odd thing happen with my M1 macbook pro. The fingerprint reader would NOT work when connected to an aftermarket charger, rated for well about the requirements. It would work when just on battery, when connected to the Apple charger but not when connected to a chinese charger I bought here in Thailand.

Sheldon

Thanks bunches

tawna brown

4 months ago

Is there anything to be concerned about using the iPhone charger to charge my MacBook pro, while using an adapter for North America to Europe power? I've always traveled with my big, heavy charger that came with the laptop (and long cord) and I am only learning now that I can use the little phone charger block to charge my computer, but I don't know if there is any issue with then attaching the adapter I need to use while traveling/charing in Europe... (traveling soon. hope to hear back in time)

tawna: It is fine. It will charge slow, so don't expect to be using it all day and have the charger keep up. But if you just use it for a an hour here or there and can charge it up overnight, well that is exactly what I do. In fact, on my last try to the UK I planned on doing that but USB outlets where everywhere in my hotel room so I never even needed a charging block.

Can I Use a Different Power Adapter To Charge My iPhone, iPad or MacBook?

Comments: 12 Responses to “Can I Use a Different Power Adapter To Charge My iPhone, iPad or MacBook?”

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