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C7 POWER

macrumors 68020
Original poster
Apr 10, 2015
2,037
1,414
Charlotte, NC
I downloaded the public beta last night and my phone did not need charging till today, so I have it charging but the time its taking to charge seems much slower than it did before the update to iOS9, has anyone else experienced this?
 

soloer

macrumors 6502a
Sep 27, 2004
883
202
Omaha
I experienced the same thing. I will wait for a few more charge cycles before making any conclusions though.
 

C7 POWER

macrumors 68020
Original poster
Apr 10, 2015
2,037
1,414
Charlotte, NC
Yeah me to, and I was charging from my computer. I normally charge every night at bed time on the wall charger but didnt do it last night, so maybe thats what made it slower to
 

hojx

macrumors 6502
Jan 18, 2014
275
144
Singapore
It is important to note that after a major OS upgrade like iOS 9 there will actually be a lot of background services running to complete the upgrade.
In addition, after an upgrade we users will tend to use the device a lot more than usual without realising.
 
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campyguy

macrumors 68040
Mar 21, 2014
3,413
957
What hojx wrote - it's the "Can't. Put. iPhone. Down." syndrome plus all of the background services.

FWIW, I installed Dev B3 OTA over B2 - it was OK. As is my custom with Betas, I wait until late that night or the next day to install a fresh version of the firmware. Both my iPhone 6 and iPad 3 are doing very well so far. Also, I use an iPad charger for my iPhone along with my iPad - soooooo much faster than the stock iPhone charger or a Mac.
 

C7 POWER

macrumors 68020
Original poster
Apr 10, 2015
2,037
1,414
Charlotte, NC
I figured the iPad charger would be to much juice for the iPhone, I have the 6 plus but I've never hooked to the iPad charger
 

C DM

macrumors Sandy Bridge
Oct 17, 2011
51,392
19,461
I figured the iPad charger would be to much juice for the iPhone, I have the 6 plus but I've never hooked to the iPad charger
The iPad charger is compatible and can even charge a phone like the 6 and 6 Plus a bit faster.
 

sbailey4

macrumors 601
Dec 5, 2011
4,571
3,253
USA
I figured the iPad charger would be to much juice for the iPhone, I have the 6 plus but I've never hooked to the iPad charger
Nope. That's not how it works. A device "draws" how much power it needs and no more. The power adapter does not "send" it. So a 2 amp charger will only supply what the device is requesting up to 2amps. Perfectly safe to use iPad charger with iPhones. Also the iPhone charger is a 1 amp charger and a typical usb port supplies only 500ma ( 1/2 of that) so naturally it will be slower.
 

Mlrollin91

macrumors G5
Nov 20, 2008
14,172
10,187
iPad charger will charge an iPhone the quickest. And computer will be the slowest. USB computer plug puts out 2.5watt, iPhone charger is 5watt and iPad is 10 or 12watt depending on the iPad you purchased.
 
Last edited:

maik005

macrumors member
Jan 15, 2011
70
4
iPad charger will charge an iPhone the quickest. And computer will be the slowest. USB computer plug puts out 2.5volts, iPhone charger is 5volts and iPad is 10 or 12volts depending on the iPad you purchased.


You mean Watt mit Volt.

They all have about 5 Volt.
 

CasuallyDressed

macrumors 6502
Sep 16, 2014
368
155
Bournemouth, UK
iPad charger will charge an iPhone the quickest. And computer will be the slowest. USB computer plug puts out 2.5watt, iPhone charger is 5watt and iPad is 10 or 12watt depending on the iPad you purchased.
Depends entirely on the computer. The USB3 sockets on the front of my tower charge my iPhone faster than my wall plug.
 

Mlrollin91

macrumors G5
Nov 20, 2008
14,172
10,187
Depends entirely on the computer. The USB3 sockets on the front of my tower charge my iPhone faster than my wall plug.

That's not possible. USB 3 is 4.5watt. Wall charger is 5watt. Either your wall socket or wall charger are defective then. Computers have the lowest power output, therefore their charge will be the slowest.
 

hojx

macrumors 6502
Jan 18, 2014
275
144
Singapore
That's not possible. USB 3 is 4.5watt. Wall charger is 5watt. Either your wall socket or wall charger are defective then. Computers have the lowest power output, therefore their charge will be the slowest.

This is the charge profile of my iPhone 6 plugged into my MacBook Pro's USB 3.0 port.

Screen Shot 2015-07-12 at 12.41.03 AM.png


Also, from Apple Support https://support.apple.com/en-us/HT204377

Apple computers with USB 3 ports provide:
  • Up to 900 mA (milliamps) at 5 V (Volts) to most Apple USB peripherals and all USB peripherals not made by Apple in compliance with USB specifications.
 
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