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iPhone 6 and 6 Plus Capable of Faster Charging Using iPad 2.1A Adapter
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It was related to the "really do explain" part which was a separate response to a separate post but was included with another reply that was part of the same post you made. So while it's not related to the first part of what's quoited, it's related to that last part of that same post.
Again, it has NOTHING to do with what you said. Someone was telling me my science about amps and power was fundamentally scientifically wrong. I asked them to explain how. Has nothing to do with iPhone charging circuits or shut offs!
And again it was still in response to that, to say that it's likely that's what someone meant by their reply--that if the device restricts how much it can take in, then increasing what is being sent to it isn't going to make a difference as far as what that device is taking in.
He quoted Eddison and Tesla, they didn't have devices back then that restricted how much it takes in. So he was referring to the fundamentals.
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Well, whatever the case might be there your original reply certainly didn't account for the devices regulating what they take in, making it at least somewhat misleading or incomplete as far as it goes for iOS devices, even if it might apply to general electronics in the overall sense--it certainly doesn't just apply to any device.
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Your genius was a retard. A year ago an iPad charger would not have charged whatever device you owned faster.
It will charge it faster, and have a slight detriment to overall battery life. It is almost negligible over a 2 year phone use cycle.
Well it does when you look at the rest of my posts discussing temperature. I have time and again said using a more powerful charger causes a significant difference in unit temperature. Regulating what ends up in the battery or not, energy needs to go somewhere and in this case its changing to heat. If that is happening in the iPhone power regulation circuitry then that heat is also being passed to the battery, and thus causes a degradation in battery life.
With my chemical background I can assure you that ANY chemical reaction either generates heat or sucks it away (getting colder). It is impossible to charge a battery without generating heat. But recent research shows that fast charging could actually be BETTER for the battery. Afair it was because the higher current prevents buildup of residue on the electrodes.
Cost vs price...
It costs Apple less to provide the 5W/1A charger in the box, but it's priced the same as the 12W/2.4A version at retail.
They went from "10W" (2.1A) to "12W" (2.4A), give or take.
Interesting that your link originally pointed to Amazon.com, but MR seems to be dynamically replacing it (via PHP) with a tracking link to target.georiot.com.
Curiouser and curiouser... Another domain to add to my adblocker...
As an Amazon Associate, MacRumors earns a commission from qualifying purchases made through links in this post.
This thread is just a bunch of conjecture without a lick of evidence. Either site sources for your claims or keep them to yourselves. Thank you.
The actual tests performed and linked to are not evidence? Seriously?
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That doesn't change the part of the post that says "Any device will charge quicker if you pump up the amps." which is remains incorrect when it comes to iPhones before iPhone 6.
One side effect of this (apparently) is that with a lightning cable plugged into a USB port on my Dell monitor (no grief, please. I don't control the IT purchasing decisions) at work (which is in turn plugged into an MBP), I get a message every time I connect my new IP6 saying "iPhone Not Charging - Connect to a power adapter or a USB port on this Mac to charge." But the message is, so far as I can tell, inaccurate. The phone IS charging, but probably not at 2.1A.
How many of the commentators have linked to tests or evidence, genius? I'm not talking about the original article.
Folks, E=IR is pretty basic. A power source of any kind doesn't have any control whatsoever over the resistance offered by the thing it's powering.
Apple iDevices and the chargers designed to charge them use either USB enumeration or analog voltage dividers to communicate maximum current availability from the charger to the device. The device then draws as much as it is offered, but no more than it is designed to handle.
If the new phones are designed to charge at 2.4A, then I have to trust that Apple did the math - as they have done for the last 20+ years of Apple rechargeable battery powered devices.
Apple iDevices and the chargers designed to charge them use either USB enumeration or analog voltage dividers to communicate maximum current availability from the charger to the device. The device then draws as much as it is offered, but no more than it is designed to handle.
If the new phones are designed to charge at 2.4A, then I have to trust that Apple did the math - as they have done for the last 20+ years of Apple rechargeable battery powered devices.
A number of them did, which is certainly more than being "without a lick of evidence" (which can even certainly include what's mentioned/linked in the article if it supports what they are saying). But thanks for throwing in a completely irrelevant and childish insult there--it does a nice job undermining anything of value you might have to say.
What would you like to see done differently with the evidence provided earlier in this thread?
Unlike most of you, I actually have an electrical engineering degree. I know when a bunch of people are just spouting nonsense that they heard from someone else, who also heard it from someone else, who quite possibly was just guessing to begin with. For example, there are at least a few dozen people here claiming that fast charging the iPhone with an iPad charger will degrade the battery life significantly in a short period of time. With absolutely no facts cited to back it up.
Here's how this conversation is going:
Guy #1: I believe it may degrade the battery life.
Guy #2: I heard that it degrades the battery life.
.....
Guy #10: It absolutely does degrade the battery life. [This guy is basing his opinions on the conjecture that he read from previous posters.]
That's just one topic of potential misinformation here. There are several others. If I didn't have work to do right now, at 9pm, I would cite them all. So what can you do? Stop making definitive claims based on little or no evidence. If that bothers you, I don't really care. You've already shown yourself to be the kind of guy to shoot your mouth off first and think later.
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See above, minus the insulting language.
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Again, what would you like me to do differently with my test? I'm not an electrical engineer, but I work closely with them in my job, and have more than a passing understanding of what's going on here. The PowerAngel may not be the highest tech instrument out there, but I pulled it from our electronics lab bench and it's there because it's more than good enough for simple measurements like this one. It seems pretty straightforward to me that the 5s can't make use of the bigger chargers and the 6 and 6+ can. I'm not exactly clear on what you are questioning here or where exactly the conjecture is.
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For the same reason they included 1GB of RAM and 16GB of memory when all other flagship phones have more. More profit. The larger charger costs more to build. It's just priced the same. Like how the .5m Lightning cable is the same price as the 1m cable.
As for Kenroberts83 and zhenya/CDM, I think you guys are on the same side and Ken is referring to others spouting off their own anecdotal experience. That's just my interpretation though.
After multiple posts that finally hinted at the actual point/position, it sounds like we might be talking about the same things, just some of us have trouble expressing what they actually mean and resort to needless and pointless insults (which actually lead away from reality) without even understanding or clarifying what it is that is actually being discussed.
If you guys haven't seen Ken Shirriff's teardown and analysis of the 5W iPhone charger, and his followup comparison of a legit 10W iPad charger vs. a cheap knockoff, it's probably worth your time, if only to see what went into the design of something so "simple":
http://www.righto.com/2012/05/apple-iphone-charger-teardown-quality.html
http://www.righto.com/2014/05/a-look-inside-ipad-chargers-pricey.html
(Via Gruber)
Spoiler: there is a lot more smarts to these chargers than the standard transformer/rectifier/voltage regulator circuit you might expect to find in such a little plastic case.
See above.
http://www.righto.com/2012/05/apple-iphone-charger-teardown-quality.html
http://www.righto.com/2014/05/a-look-inside-ipad-chargers-pricey.html
(Via Gruber)
Spoiler: there is a lot more smarts to these chargers than the standard transformer/rectifier/voltage regulator circuit you might expect to find in such a little plastic case.
See above.
My response was meant to be about Amps not watts, but if you look at the amperage on both you will see which one is higher.