IDK - I need to see it in the flesh but it sounds like it is slower than charging by cable, more of a hassle to disconnect than a qi pad and the accessories aren't attached strongly enough.
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MagSafe Charges 2x Slower Than Wired 20W USB-C Charger
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IDK - I need to see it in the flesh but it sounds like it is slower than charging by cable, more of a hassle to disconnect than a qi pad and the accessories aren't attached strongly enough.
Right? I don't understand the criticisms here. Sounds like the reviewers don't seem to understand that 20W fast charging is, in fact, faster than 15W charging. And for something like MagSafe, eschewing fast charging is probably a good safeguard to have. That and, it comes off as nit picking when 15W charging (regardless of power loss through wireless) is still faster than 5W charging (or 7.5W with Qi).
Also, fast charging is VERY fast when the iPhone is below 20-30%, and this has been tested and verified with the iPhone 11 Pro's 18W adapter. Most of the difference comes during that initial 20-30% charge.
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It is surprising. First of all, 20w is not twice as much power as 15w. One would not expect it to be twice as fast. Second, to my knowledge, Apple didn't state the iPhone 12 was capable of 20w wired charging, so that is new.
I just hope she was smart enough to turn off optimized battery charging for this test.
Eh, I don’t know... better decision would be to research what you’re buying beforehand?
No, you see, I’m an Apple person. It has an Apple logo. Everyone knows I’m required to BUY whatever Apple logo’d thing is released. Because... it MUST be for me. Because, if it’s NOT something I personally need or can use, then there’s only ONE reason why....
Apple has LOST THEIR WAY!! /s
Though arguably there's little need for magsafe in that scenario.
Yes, I get that it provides a more positive alignment - but as a longtime user of Anker and other Qi pads & stands, alignment with Anker pads (wider than my XS phone) is trivial.
About once every page this should be re-quoted.
I don’t know how Apple’s version of Qi compares with brand ‘X’, but no ones induction charger is anywhere near as fast and efficient as a wired charger. Basically you’re exchanging speed for convenience. Using wires to directly supply current to recharge is always going to be more efficient than a device that creates an oscillating magnetic field to interact with a coil inside the phone to generate electricity. Creating and converting that magnetic field takes energy that then isn’t available to actually charge the battery.
Compare Qi and MagSafe. That’s a much more valid comparison.
A variety of comments come to mind. Each would get me banned. LOL
Photo suggest the cord length is approximately 1 meter - which is in alignment with Apple's usual cord lengths. It will be interesting to see if they in the future offer 2m and 0.3m versions. Though there are enough USBC 3.1 cable extension available inexpensively that there's less need for a 2m version.
you’re telling me that a wired 20-watt charger will charge an iPhone faster than a 15-watt induction charger?
Shocking news!
next you’re going to tell me that a glass phone breaks when dropped.
Shocking news!
next you’re going to tell me that a glass phone breaks when dropped.
Battery physics are different from what a lot of folks are thinking in this thread, and the marketing doesn’t make it easier to understand.
15W is not “double the speed” of a 7.5W charger. And as for wireless vs wired efficiency, 15W x 70% =10.5W = 20W x 50% is not correct either, or at least not a scientific way of estimating efficiency of MagSafe.
Here’s a good article on the physics of fast charging: https://www.androidauthority.com/fast-charging-explained-889780/
The real variable is voltage, although again it’s not a linear thing, as battery charging has two different stages. But- slightly more accurate about why MagSafe is twice as long to charge is because Apple’s 20W charger has two voltages it delivers charge at: 5V (at 3A) and 9V (at 2.22A).
15W is not “double the speed” of a 7.5W charger. And as for wireless vs wired efficiency, 15W x 70% =10.5W = 20W x 50% is not correct either, or at least not a scientific way of estimating efficiency of MagSafe.
Here’s a good article on the physics of fast charging: https://www.androidauthority.com/fast-charging-explained-889780/
The real variable is voltage, although again it’s not a linear thing, as battery charging has two different stages. But- slightly more accurate about why MagSafe is twice as long to charge is because Apple’s 20W charger has two voltages it delivers charge at: 5V (at 3A) and 9V (at 2.22A).
It’s not a story, it’s click bait.
Common sense will tell you that a device will charge slower when hard wired to a 20 watt charger than when magnetically connected to a 15 watt charger.
That and the fact that Apple never claimed it charged faster (or even as fast) compared to a standard charger.
Corporate greed?
please tell me that you’re familiar with the concept of a for-profit business.
I use my Samsung Fast charger and OnePlus warp Wireless chargers to charge my iPhone XS Max and iPhone 11 Pro Max!
No plans to go after MagSafe when I plan to get iPhone 14 Pro Max.
BTW, Huawei Mate 20 Pro+ so tempting but not available in my place.
No plans to go after MagSafe when I plan to get iPhone 14 Pro Max.
BTW, Huawei Mate 20 Pro+ so tempting but not available in my place.
Jesus. You can’t simply double the charging rate by physically splitting a battery in half.
Battery charge times
I thought of an idea recently, and I wanted to know if electrical engineers agreed with my theory. I have a smartphone. Recently I bought a power bank because I found my phone's battery not holdin...
Spend maybe a few minutes doing some basic research before posting ridiculous nonsense.
Full comparison please...
- 20 w
- 15 watt mag safe
- 12 watt ipad brick
- 7.5 qi
- 5 watt brick
- 5 watt qi
- 0 to 50%
- 0 to 80%
- 0 to 100%
- 30 to 80%
- 20 w
- 15 watt mag safe
- 12 watt ipad brick
- 7.5 qi
- 5 watt brick
- 5 watt qi
- 0 to 50%
- 0 to 80%
- 0 to 100%
- 30 to 80%
