This is what I do. I don’t understand complaints about this, don’t people sleep? I also run the pad off a 5V2A charger and have never noticed the phone being even warm, yet my 11 Pro goes from full to empty overnight. Is it fast charging that leads to complaints of heat?
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Apple Says MagSafe Charger Limited to 12W for iPhone 12 Mini
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Welllll, it’s only a baby phone, with a baby battery, so what did you expect?! /s You’re going to get Fisher Price charging!
OP is saying that if you have $699 and tax is $0, you cannot afford to buy an iPhone 12 in any way. You'll still owe someone $30.
Apple is introducing too many variables in the picture. Unlike the Apple of yore, bringing the best for everyone. Now we have another reason where there will be many who will go that they want the 12 or 12 Pro for that extra 3 W charging power.
It's a subscription service, bundled into Apple One.
Okay so I know it’s more efficient as it’s plugged into the wall, rather than wirelessly, but my 12w adapter I use to charge my SE still does a decent job of charging relatively quickly-hopefully as tech improves battery health will be better in terms of Qi/fast charging but it definitely deprecated my iPhone 11 when I had it.
You ask if we know, but do YOU know how much extra energy is required to go wireless? Seriously. The power consumption by cellphones is ridiculously low as compared to almost any other electrical device in your home, so twice almost nothing, is still almost nothing. But the real energy cost of cell phones is NOT charging them, its the huge infra-structure of powering cell towers and data centers. So if you want to save the planet talk for a minute less, and that will recoup any additional costs of charging wirelessly versus wired. But wait there is more, as much power as a cell tower eats, its still less than the power consumed by your computer... so if keeping cell phones charged means people use their computers less, that is also a win. There are any number of ways to save power, nickel and diming on the small wins while ignoring the large wins possible is what people are talking about when they say how your charge your cellphone is not the issue.
Nope, I am saying the said iPhone 12 is $799 during the keynote and it is really $829. They should have been more transparent there.
the point is that it was a real world setup and I've seen the data first hand ... and appreciate your useful answer
it was a real world setup and I've seen the data for myself.
So apple is lying about its product?? when a 20W brick can charge a phone with 15W - how do you come up with 30%?
I would guess as long as the case is thin enough. Has anyone gotten a non MagSafe that they can charge through with MagSafe?
This is the last straw. First covid-19 and now this. I thing we should go kill ourselves guys.
Everyone here blasting Apple. Where was everyone when Apple, a company that has billions just sitting around, argued that they should only have to pay a couple of hundred dollars in rent a month for their offices/showrooms?
Also it's a safe bet that Apple, in a few years, voids the lighting cables to work with their new models.
Also it's a safe bet that Apple, in a few years, voids the lighting cables to work with their new models.
Please cite a real-world test that demonstrates 80% efficiency for wireless phone charging.
I'll get the ball rolling:
Wireless charging has an efficiency issue
On paper, wireless charging has its benefits. Being able to simply plop your phone down on a mat to recharge eliminates the potential for wear and tear...www.techspot.com
There is a good article on the inefficiency of wireless here. The alignment of the charging coils is the main problem, and the main reason why magnetically aligning them actually makes a difference.
Wireless Charging Wastes Tons of Energy. Will MagSafe Help the iPhone 12?
A new charging method could make a big difference
debugger.medium.com
The article also has a link to a technical article and that link indicates wireless inefficiency can use an extra 30 to 60 percent more power, so if my math is correct that 30% extra would make it 77% as efficient.
Wireless is not going away, so anything to make it more efficient is a good thing.
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You are talking about different things now. The phone has controllers for charging, even if the 20W were provided by the source the software can decide how much to take in or to charge at all. iPhone even have a setting that will only let you charge up to 80% and then complete to 100% based on usage patterns even if it is connected to the power source the whole time.
Now the efficiency issue relates to how much power is actually effectively transmitted from the coils to the receiver in the phone. Even if 20W are used by the mat creating this magnetic field to transfer power to the coils on the back of the phone is not as effective as just plugging in a cable. Much of that power is transformed to heat, as much as 70% of all of it, and the energy your phone receives is only 30%. Since this mats do not have active cooling systems all this heat cannot dissipate easily and can cause degradation of the battery. There is also concern about the electromagnetic emissions. This is partly the reason why Apple shelved their announced inductive charger, they simply could not make it work effectively.
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I don’t know what the big deal is. I use the MagSafe to top off the charge during the day. I plug in to the older slower brick at night via lightning. I find MagSafe a bit more secure than my other wireless pucks that often gave me some slipping and sliding since I use polycarbonate cases. (And I like the clicking sound and animation. 😆 )
Seriously I would not recommend using this to charge from near empty. I have tried that and the heat produced is unsettling. But it stays cool for top-offs. Even when I have left it overnight a couple of times.
All that being said, I think there’s vast room for improvement. There are too many caveats at this point, that if I had it to do all over again, I probably wouldn’t. But they’re here and they are convenient for my limited purpose, so they will stay.
Seriously I would not recommend using this to charge from near empty. I have tried that and the heat produced is unsettling. But it stays cool for top-offs. Even when I have left it overnight a couple of times.
All that being said, I think there’s vast room for improvement. There are too many caveats at this point, that if I had it to do all over again, I probably wouldn’t. But they’re here and they are convenient for my limited purpose, so they will stay.
It’s still faster than regular wireless charging.
How are they crapping on customers when this information is coming out before the phone is even released? It's 3W lol. No average consumer will know and even less will care.
Exactly. I like the MagSafe charger but use it in the same way you do.