Q: Can use ipad charger to charge iphone?

Michael Superczynski wrote:

 

Logic, rational thinking and the scientific method all mean nothing to the vast majority of posters in this thread. people on Earth.

Fixed it for you.

John Galt wrote:

 

Welcome to Apple Support Communities Mr. Maxwell.

 

You will surely find its reflection on the human condition entertaining... or terrifying. I reached a conclusion on that subject long ago.

I can't be entertained as I read some of the posts and realize that the authors could be voting in our elections and home-schooling their children.

I was going to say that; the extrapolation to the general population was implied.

My iPhone  grew after charging with the 10A iPad charger and got even bigger and better after using the new 12A version.

F. Maxwell wrote:

I can't be entertained as I read some of the posts and realize that the authors could be voting in our elections and home-schooling their children.

That IS a scary though.

Yes, You can use the 2A iPad wall adapter to charge an iPhone. Using the 2A wall adapter will charge the iPhone faster than the 1A you were given when purchasing the iPhone.

It may just be my mind playing tricks on me, but the concept ive come up with in my head makes sense to me (I didn't research anything about electricity because im too lazy). I have noticed that the 2A wall adapter will charge the iPhone a lot faster, which makes sense and I understand. But the part I dont understand is that the battery life of the iPhone when using a 1A charger compared to charging with a 2A charger is much longer. (1A slower charge but longer life, 2A fast charging but it doesnt seem to last as long per 100% charge from 0)

If someone wants to test that for me as well or back me up/confirm it for me that would be great.

The decision is up to you though because it is 100% safe.

Noahwhite2014 wrote:

 

Yes, You can use the 2A iPad wall adapter to charge an iPhone. Using the 2A wall adapter will charge the iPhone faster than the 1A you were given when purchasing the iPhone.

Please provide data to support your contention.

Obviously you don't understand what an Ampere is...

Now THAT is funny coming from someone that in his own words "didn't research anything about electricity because I'm too lazy"

Sadly you laziness is showing its result now.

F. Maxwell, I warned you...

Yes I did say I "didnt research" anything about electricity as in research anything now. But anyone who took ANY PHYSICS class had to have been through basic electrical concepts and vocabulary AT LEAST. These being : Ohms, resistance, voltage, AMPERE (Amps whatever you want to call it) and what they are and their relation to the others.

<Edited By Host>

Oh Noah, you have so much to learn. But keep trying, you'll get there.

Noahwhite2014 wrote:

 

Yes, You can use the 2A iPad wall adapter to charge an iPhone. Using the 2A wall adapter will charge the iPhone faster than the 1A you were given when purchasing the iPhone.

 

 

No it will not. this past week I did several controlled experiments, measuring the time to charge from 0% to 100% using each power source, and also measuring the charging current with this device while charging. The charging current with the 1 amp power source was 1.01 amps, tapering after 60% was reached linearly to zero at 100%.

The charging current with the 2.1 amp power source was 1.01 amps, tapering after 60% was reached linearly to zero at 100% (65% 0.94A, 70% 0.77A, 75% 0.6A, 90% 0.3A). 

With both power sources, waking the phone increased the consumption to 1.1 amps. I could not get it higher than 1.1 amps with either. For the 1 amp power source this is no surprise, but I was a little surprised that the 2.1 amp power source was also limited to 1.1 amps, even running battery-intensive applications.

The power meter also measures voltage; the output voltage for each power source was 5.1 volts.

So the same amount of energy goes into the phone with either power source. Unless the laws of physics are being violated, with the same energy going into the phone from either power source it is not possible that one will charge faster (or slower) than the other.

And the actual measured charge times were the same also: 2 hours to 90%

Oh, just in case you think my 2.1 amp power source is defective, it charges my iPad at 2.05 amps.

Do you sometimes feel like you are beating your head against a brick wall?

stedman1 wrote:

 

Oh Noah, you have so much to learn. But keep trying, you'll get there.

Sure... so will Chelsea.