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My thinking was the same but I actually tested with a USB-C power meter... I was consistently getting better results with the 25W charger. In all fairness those tests were not very scientific, covering every possible scenario etc. Also, come to think of it, I was testing with my iPhone 17 which has a different cooling system than previous gens, so older phones may give different results...I am not sure. In any case, if a peltier cooling option comes in 25W in the future, I will likely migrate to that, at the very least it always felt really cool (like magic) to grab your phone and feel the cold spot on the backHere's the thing though; my observation is that heating slows the charging so much that you may get faster results with a cold 15w than a hot 25w. I don't have strict testing, but observations of the phone saying it has stopped charging due to heat, very often in summer. I prefer to KNOW that the phone will be charged in an hour than wonder if it will be charged in 20 minutes, or 60, or 120, or not at all.
Of course, the whole thing with getting them from China is a huge valid challenge.
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