Does iPhone charge faster using computer or wall jack?

guest0320

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#1
Has anyone ever figured out whether or not the iPhone charges faster on the wall jack or when plugged into the computer?

Just curious

Dana
 

ballsonface12

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#2
I think they are both the same but some people swear its faster charging through the computer
 

JoeT

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#3
Well, the Apple wall charger states that it is rated to 1A, and USB is (from what I can tell with a quick search) limited to 550ma, so I would have to conclude that the charger is capable of recharging the iPhone at twice the speed. Now, this also depends on the iPhone's charging circuitry - does it perhaps limit the maximum charging rate - but at any rate, the wall charger would certainly be as fast as the USB port no matter what.
 

scandalex

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#4
Everything charges faster with a wall charger. USB gets the job done; just very slowly.
 

Colin

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#5
I don't know if this applies to the battery in the iPhone, but it does to other rechargables. Faster charging usually means more heat, and this tends to shorten battery lifespan (by lifespan I mean the total number to charging cycles). I would imaging that I'd trickle charge as much as possible using the USB (given a choice),
 

guest0320

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#6
I may have found an answer:

I downloaded a 3rd party app called Battery.
It shows battery info.
One of the categories is External Power.

When I have my phone plugged into the wall it shows 750mA
When it is plugged into my computer it shows 500mA.

Joe T and scandalex you were both correct, but now we have empirical evidence.

Thanks again

Dana
 

guest0320

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#8
Sure.
I'm walking out to the car now.

750mA.

Dana
 

JoeT

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#9
Awesome! It'd be very cool if you could also include the make/model of the charger and the mAh rating as well - that should be on the charger.
 

guest0320

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#10
Joe,
my car charger is my old iPod charger that I have had for two or three years. Every time I plug it in I get a screen that says "this device will not work with iPhone".
It works just fine.

I'll get the numbers later if you still need them.

Dana
 

JoeT

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#11
No rush, but it would be interesting and potentially useful down the road. I'm not jailbroken, so I can't check these things myself.
 

guest0320

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#12
I have to run to Walmart a little later to buy DVDs. I'll get them then.


And JAILBREAK DAMMIT!
:)

You have NO IDEA what you are missing!

Dana
 

Token

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#14
Charging in wall vs USB?

When I have my phone plugged into the wall it shows 750mA
When it is plugged into my computer it shows 500mA.
Hmm... i downloaded "Battery" as well and it shows 1000mA when plugged in the wall and 500mA in my computer.

I am using the power cord that came with the iPhone.

What is everyone else getting in "Battery" when plugged into the wall vs USB.

Which (if either) is better for the phone?

Recently my iPhone wont charge to 100% (91% highest). I try the whole drain completely and a full charge technique, no help. And it doesn't matter if i am on 1.1.1 or 1.1.2 or 1.1.3 (which i am on now). Anyone else have this problem?