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Iwavvns

macrumors 6502a
Original poster
Dec 11, 2023
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I have a MacBook Air M1 with its original charging block and cable. If I upgrade to an iPhone 15, or the upcoming iPhone SE 2024, can I use the MBA M1 cable and charger with the iPhone? Will it cause an iPhone to overheat? Is it safe?
 
The bigger the brick doesn't mean it'll use up all the wattage. If the block is 67 watts and the iPhone handles up to 30 watts then the max it'll use is 30 watts out of the 67 watts. Sometimes I charge my 15 Pro with my MBA M2 67 watts and so far nothing has happened and the battery health is still 100% with a 260 cycle count.
 
The bigger the brick doesn't mean it'll use up all the wattage. If the block is 67 watts and the iPhone handles up to 30 watts then the max it'll use is 30 watts out of the 67 watts. Sometimes I charge my 15 Pro with my MBA M2 67 watts and so far nothing has happened and the battery health is still 100% with a 260 cycle count.
Thanks for that. This means I won't need to lug around two cables and bricks.
 
Thanks for that. This means I won't need to lug around two cables and bricks.
correct. any USB C cable and charger will work as the iphone controls the power.
I would just stay with chargers of the more well known brands like Anker, Samsung, Apple, Nintendo...
 
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correct. any USB C cable and charger will work as the iphone controls the power.
I would just stay with chargers of the more well known brands like Anker, Samsung, Apple, Nintendo...
Thank you for your reply. I'm not an electrical engineer so it amazes me that the phone itself can control things like that.
 
Well if u already have a Switch the charger also works for iphone and MB
Just seemed like a random outlier for when recommending phone charger accessories 🙂

Thank you for your reply. I'm not an electrical engineer so it amazes me that the phone itself can control things like that.
Think of it as a safety feature - so that it doesn’t explode due to allowing too much power that its innards can handle.
 
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Just seemed like a random outlier for when recommending phone charger accessories 🙂


Think of it as a safety feature - so that it doesn’t explode due to allowing too much power that its innards can handle.
That makes sense. I had a friend who owned a Samsung Note, at least I think that was the device type, and it caught fire right out of the blue one day. But he used any charger he could get his hands on so I wanted to be safe and ask about that here.
 
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