What is the definitive answer on Power Draw and charging

chefwong

macrumors 6502
Original poster
Jan 17, 2008
290
8
Read many conflicting reports.
WILL a iphone charge Faster via a car charger --- 2.1 Amp rated or will it still only DRAW.5 amps on it's provided cable.
 

Mrbobb

macrumors 601
Aug 27, 2012
4,989
194
If the iPhone had a fast-charge feature (highly desirable) don't u think they advertise it?
 

Gjwilly

macrumors 68030
May 1, 2011
2,875
525
SF Bay Area
iPhones charge at either 500mA or at 1A depending upon the charger.
If the charger was built according to Apple's standards then the charger will tell the phone what it's capable of and the iPhone will draw accordingly.
But there is no 2.1A setting in the iPhone -- only 1A or 500mA.
 

Abandapart82

macrumors member
Sep 23, 2008
62
0
Anybody else having an issue where the battery won't charge if its too hot? Happened today while i was driving. It would recognize that it's plugged in but it would stay at a certain percentage.
 

A420Turbo

macrumors member
Aug 17, 2010
49
0
NY
Anybody else having an issue where the battery won't charge if its too hot? Happened today while i was driving. It would recognize that it's plugged in but it would stay at a certain percentage.
+1 same thing happened to me yesterday charging my iPhone 5 while using tomtom. The battery icon in the top right corner showed the plug icon while the charge was only about 64 and stayed that way even after I closed tomtom. I had to manually unplug the phone and re plug it back in to get it charging again... Other than that phone is great my luck I'd get a replacement with much worse problems
 

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Abandapart82

macrumors member
Sep 23, 2008
62
0
+1 same thing happened to me yesterday charging my iPhone 5 while using tomtom. The battery icon in the top right corner showed the plug icon while the charge was only about 64 and stayed that way even after I closed tomtom. I had to manually unplug the phone and re plug it back in to get it charging again... Other than that phone is great my luck I'd get a replacement with much worse problems

Yup, exactly what was happening to me. I was using waze while driving and my iPhone 5 got really hot and the battery icon changed to what your pic shows.
 

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