Questions & Answers for 87W USB-C Power Adapter
22 Questions from the Community
Can I charge my iPad Pro with a 87W Power Adapter? Will it damage my iPad Pro?
- Asked by Joyce H from Charleston
- Flag as inappropriate (Can I charge my iPad Pro with a 87W Power Adapter? Will it damage my iPad Pro?)
Yes, you can charge your iPad Pro with the 87W Power Adapter. Your iPad will only "ask" the adapter for so much current, and the adapter will not give more than that. Depending on if your iPad is equipped with fast charge, it may charge your iPad faster.
- Answered by Sam F from Olathe
- Flag as inappropriate Answer (Can I charge my iPad Pro with a 87W Power Adapter? Will it damage my iPad Pro?)
Can I charge two iPad pros with a usb-c splitter. Have his and hers and travel.
With this watt capability should have enough to charge two Pro 11” with addition of a usc-c splitter. Each has same power requirements profile.
- Asked by Shelley C from Greenwood
- Flag as inappropriate (Can I charge two iPad pros with a usb-c splitter. Have his and hers and travel.)
What is the output Amps for this product
- Asked by Dhanasekar R from Ashburn
- Flag as inappropriate (What is the output Amps for this product)
Does this charger sense when it's connected?
i.e. If left plugged in to a power outlet when not connected to a device will it still draw current?
I'll be using it to charge a Touchbar MBP 15". With my previous MBP I would charge it from my Thunderbolt monitor, which only supplied current when the MBP was connected. Since a MagSafe to USB-C adapter is not available I will have to use this charger instead but will need to leave it connected to the wall socket behind my desk and I don't want it to be wasting current through the transformer all day while I'm out.
Thanks in advance.
- Asked by Andrew G
- Flag as inappropriate (Does this charger sense when it's connected?)
Ideally, you should use the 87W charger with a proper 5A/100W cable, but lower-powered chargers will also work.
Keep in mind that running a CPU or GPU intensive task (like encoding a video) with an external monitor attached can easily draw 60W, so anything less than the 87W adapter will result in curtailed charging speed wile doing computationally intensive tasks.
On the other hand, using lower-powered chargers can provide portability and flexibility advantages.
Assuming that the 2017 is the same as the 2016, you can actually (slowly) charge your MacBook Pro 15" with any decent apple-coded 5V, 2.4A 12W charger (like an iPad charger) via a USB-A to USB-C cable. Such a charger could also provide most of the power needed for lightweight tasks, like checking email, without drawing much power from the internal battery.
The MBP 15" also works with a 15W (5V @ 3A) USB Type-C chargers, and many higher-powered USB Type-C chargers with USB-PD support. I'm running mine off a 30W USB-PD capable external battery right now. I've also powered it with a 27W capable USB-PD compliant car charger and a (somewhat) pocketable 27W USB-PD wall-wart.
- Answered by Erik S from Seattle
- Flag as inappropriate Answer (what chargers can i use with macbook pro 2017)
Can I use the 61 watt and 86 watt power supplies interchangeably between 1) Macbook pro 13" 2016 2) Macbook pro 15" 2017 (newest model) both are USB-Best Answer:
Yes you can, the 13" won't charge any faster with the 87W, the 15" will charge slower with the 61W but they will both work.
Apple's USB-C Power Supplies utilize PD. This is a USB-C power delivery protocol that allows for multiple power output profiles. If you look at the side of your power supply you can see all of the profiles listed. There is a profile for 5.2V 3A which will deliver essentially 15W at a safe voltage to a mobile device. (MFi standards for an iPhone are not to exceed 5.25V).
New iPhone and iPad models can accept higher than the prior MFi Maximum 12W power (5.2V 2.4A). In these scenarios, the iPhone can "quick charge", or can re-charge about 50% of the battery in about 30 mins.
No worries about damaging the iPhone because the power supply requires essentially a "handshake" with the mobile device (iPad, Macbook, MacBook Pro) to pass higher voltage. If the device cannot handle the higher current / voltage PD profiles, the power supply will revert to the lowest profile.
Hopefully, this helps clear this up. USB-C is a very cool standard and I think because it is new there is not much press around its versatility. Could be an opportunity for Apple to market up these features and educate users while also building more value around its products ;)
- Answered by Derick D from Ladera Ranch
- Flag as inappropriate Answer (Can the 87W USB-C power adapter be used with the NEW iPhone Xs Max? and will it damage the Xs Max?)
My friend is getting me a MacBook Pro from US. I stay in India. Do I need a power converter to use in India to change from 110 v to 220 v.
- Asked by Stephen A from Hyderabad
- Flag as inappropriate (My friend is getting me a MacBook Pro from US. I stay in India. Do I need a power converter to use in India to change from 110 v to 220 v.)
No, you just need an adapter for whatever plug type is used in India. The charger will handle the voltage conversion.
- Answered by Jared M from Prospect
- Flag as inappropriate Answer (My friend is getting me a MacBook Pro from US. I stay in India. Do I need a power converter to use in India to change from 110 v to 220 v.)
Can I use 87 w macbook pro charger for mid 2015 macbook pro 15 inch,
Macbook pro 15 inch
16 gb ram
- Asked by Deepak S from Jaipur
- Flag as inappropriate (Can I use 87 w macbook pro charger for mid 2015 macbook pro 15 inch,)
Yes, it can be used. It will not damage the iPhone.
yes you can
- Answered by David P from Sutton In Ashfield
- Flag as inappropriate Answer (Can I use this adapter with a USB-C to lightning cable too fast charge the new iPhone X when it arrives)
Does it have any warranty?
- Asked by Lokesh P
- Flag as inappropriate (Does it have any warranty?)
The device has its own 1 year warranty, and it is also covered under your Mac's warranty if it's the same model of charger that ships with your model of laptop. So whichever warranty is longer, Apple will honor.
- Answered by K H from New York
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Can you attach an older 3-prong (grounded) cord to this brick?
This might be a dumb question, but I'm wondering if I can use the three prong extension cord off my old (2015) macbook's power cable. I'm assuming there is no special amp/wattage etc. considerations to be made for this addition?
- Asked by Jeremy W from Cheyenne
- Flag as inappropriate (Can you attach an older 3-prong (grounded) cord to this brick?)
Yes I did this without any issue. Used the old cord from my 2011 MacBook Air and attached it to the brick provided with my MacBook Pro 2016
- Answered by Saba K from Miami
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Can I use a Magsafe to USB-c adaptor to charge the new MBP 2018?
I have several Magsafe-1 or 2 chargers for older Macbooks that will just need an adaptor to be usable again with my new MBP, will this be possible?
- Asked by Alberto B from Nyc
- Flag as inappropriate (Can I use a Magsafe to USB-c adaptor to charge the new MBP 2018?)
Is there a 12volt charger for the latest MacBook Pro?
MacBook Pro. 14,3
- Asked by Douglas T from Fairfield
- Flag as inappropriate (Is there a 12volt charger for the latest MacBook Pro?)
With the MacBook Pro it can depend on what model you have for charging. This one you selected is for the 15inch MacBook Pro 2016 or later models They would have the Thunderbolt 3 ports. It would be awesome to have a 12Vt charger however it wouldn't have enough power to push it.
- Answered by Megan G from Buckeye
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What are the dimensions of this power adapter?
W cm x H cm x D cm?
- Asked by Luke W
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I tried to charge my iPhone 8 from 1% battery to 100% with 87W power adapter and USB-C to Lighting 1 meter long Apple cable. It took 1 hour and 35 minutes. Not bad when I am in rush and need to charge ASAP. However I am using good old 1A chager from the iPhone box on regular basis in order to save the battery life.
- Answered by Alexander K
- Flag as inappropriate Answer (Will the 87W power adapter charge the iPhone 8 plus faster than the 29W power adapter?)