I feel the easiest path around this is to use wireless charging instead of plugging into a multi-use port. As we have seen operationalized USB attacks, I don’t quite buy the premise of the article.
Fast charging also produces a lot of waste heat. Out phones should know our patterns and for example slow charge overnight. Similar to what Apple started doing with the MacBook where it won't charge to 100% if if knows it will be attached to power.
I doubt that those couple of watts per phone will make a dent even if we multiply them by a billion. Wireless charging is 70% efficient in theory, but lets move to 50. So a 17 watthours battery (biggest currently in phones) would waste 17 watthours per charge - equivalent of my any of those - my induction hob, my oven, my electric water heater or my oven working for 30 seconds. Or my gaming PC for that matter.
so 7 billion people, fully charging their phone each day, the phone battery being the biggest one on the market - each year they will waste around 0.17 percent of world electricity production. But since wired charging is also not 100% efficient - if we give it 90% efficiency - this means that we are saving in that case 0.12 percent of world electricity.
I doubt that it will save the planet. The only think it will help is make some people feel righteous with symbolic gestures.
That seems a lot? I’d have guessed it’s a magnitude or two less
What I mean is that there are much easier fruits to pick without sacrificing even tiny bit quality of life.
The number's going to be higher than reality.
Legit question about this, I couldn't find any references.
Does fast charging produce more waste heat than regular charging per mAh charged?
I couldn't find information on this.
It's quite obvious that fast charging makes your device hotter, but this could be just because the heat has less time to dissipate.
To get a good comparison we need to do wired fast vs wired non-fast, then wireless fast vs wireless non-fast.
Just how wasteful is it? 70-80% vs 9X% considering how little power phones use on average is insignificant…
You’d save what? 1-2 kWh per year at the very most? Totally irrelevant..
Nothing compared to the spending and pollution of gas to go a distance one could comfortably walk or bike - most vehicle journeys in the US.
Compare with the amount of money, energy waste, heat waste, pollution, of driving every journey less than 3 miles which could plausibly be biked or walked or bussed or trammed - between North America and Europe closing in on a billion people, estimate 20% of them driving 3 miles every 3 days and we're in the region of 200,000,000 miles of unnecessary driving every day and tens of millions of litres of gas/diesel burned
What is the point of this question?