What is the maximum power my MBP can take via the USB-C port? I can't find the spec anywhere. Please point me to a document.
2023 16" Macbook Pro M2 Max, made before November.
MacBook Pro (M2 Max, 2023)
exekutive wrote:
"laptop draws what it needs"
"The laptop controls the flow of energy."
I completely understand this, hence why I said "can take" in the question. So you just repeated back to me what I already said. I did not go into the details, because they are completely irrelevant to the (very straightforward) question. The links don't answer it either but thank you for your time.
The links and information that D.I. Johnson provided actually do suggest an answer – if you pay attention.
Charge your Mac laptop computer - Apple Support links to
Fast charge your MacBook Air or MacBook Pro - Apple Support
which says
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On the 16-inch MacBook Pro, you can fast charge with the following adapter and cable:
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The original version of the USB-C Power Delivery specification did not provide for power delivery of more than 100 watts. So the fact that fast-charging a 16-inch MacBook Pro requires both
implies that the USB-C ports on your 16-inch M2 Max MacBook Pro (released earlier in 2023) cannot accept more than 100 watts (5 amps, 20 volts) of negotiated power. (Or at least could not when it first came out - possibly the hardware was flexible enough to support higher wattages once macOS was updated to reflect a new PD standard, but if so, Apple is not advertising that or making any special promises.)
"You want an official specification document - look it up yourself. This is good enough for me."
I'm glad you're satisfied. Unfortunately , it doesn't match reality.
"Maybe, just maybe, that 16" screen draws more power than a 14" one does."
Naturally. Therefore, logically, you would expect that the 16" would accept more power via the USB port than the 14" model. If the Apple specs are correct, the opposite is true.
"There's no reason to believe that 14" {M1/M2}-family MBPs can draw more power "
The reason is Apple's own published specifications.
"Apple did not "decide to only cripple their most expensive model"
By the available information, it appears they did.
"And I’d expect the power requirements can vary."
Of course they vary. But USB hardware imposes limits. The limit for the USB port is NOT 140W.
For the 3rd time, I'm not after measurements. I'm after limit specifications. Have you understood the question yet?
" via the USB-C port" not magsafe
"What is the maximum power my MBP can take" not give
Doesn't answer the question at all.
There's no reason to act surprised. It's important (and courteous) to pay attention to the words that people use. It's too bad the only way to get basic power specs for a laptop is from an engineer.
Maximum USB-C power for 2023 16-inch MacBook Pro M2 Max?
