Charging iphone 5 with 10W ipad charger

metsjetsfan

macrumors 65816
Original poster
Feb 2, 2011
1,306
190
Has anyone tried this yet is it even faster? with the 5 Watt it seems to be about 1:45-2:00 hrs to fully charge from <10%. Hard to beat, is it faster with 10W charger?
 

Fidget08

macrumors regular
Jun 14, 2010
141
5
Been charging with my macbook pro charger for damn near 5 years. Charges my phone is 10 minutes! Its a breeze!
 

antirice

macrumors newbie
Jul 26, 2012
10
0
There is long term effects. The battery is being charged with a current much greater than the battery itself. It will charge much faster. But it deteriorate the battery and can heat up the battery.
 

pragmatous

macrumors 65816
May 23, 2012
1,378
96
By the time the battery is damaged you'll be long over due for a new phone anyway.

There is long term effects. The battery is being charged with a current much greater than the battery itself. It will charge much faster. But it deteriorate the battery and can heat up the battery.
 

mainomega

macrumors 6502
Jun 5, 2007
297
71
Yea, have my standard 5W chargers on the night stands to charge overnight but I keep the iPad chargers (10W) on the first floor and by the kitchen for a much faster boost. Usually will charge atleast 50% in about 15-20 mins
 

x986

macrumors regular
Sep 12, 2008
110
4
NorCal
What's the amperage on these 10W chargers?

----------

What's the amperage on these 10V chargers?
 

Rocko1

macrumors 68020
Nov 3, 2011
2,068
2
There is long term effects. The battery is being charged with a current much greater than the battery itself. It will charge much faster. But it deteriorate the battery and can heat up the battery.
Wrong. The phone regulates the current into the battery. It will not harm it.
 

bitslap47

macrumors 6502a
Jul 9, 2007
631
336
Current can only be drawn, it is not pushed.

Voltage is pushed, not drawn.

Volume (current)
Pressure (voltage)

No more current will be used than is usable. Water isn't sucked through a hose when the end is wide open.

Watts is a power rating, which is:
Power (Watts) = Voltage (volts) X Current (amps)

So a 5 watt adapter can supply .5 amps at 10 volts.

A 10 watt can supply 1 amp at 10 volts.

The advantage you are probably seeing is that the phone may be able to use/draw .52 amps or 5.2 Watts to charge.

So the iPad charger would, in theory provide a 4% advantage since the 5 watt adapter would be clamped to .5 amps since it can only dissipate 5 watts of heat safely.
 

Mercenary

macrumors 65816
Sep 17, 2012
1,154
546
You can use it and NO, IT IS NOT FASTER!

The iPhone will only draw as much as needed.

I put it to the test. My wife's phone which had turned off at 0% on the iPad charger and my phone at 0% on the iPhone charger. Both charged at the same rate and reached full charge at the same time.
 

frozzbite

macrumors member
Mar 10, 2011
97
2
You can use it and NO, IT IS NOT FASTER!

The iPhone will only draw as much as needed.

I put it to the test. My wife's phone which had turned off at 0% on the iPad charger and my phone at 0% on the iPhone charger. Both charged at the same rate and reached full charge at the same time.
I thought the increased speed was psychological as well. So I did a similar test to you and my iPhone did charge faster. Not by very much though.

2 independent occasions, same iPhone 5:
In the same time from 0%, 10W charger gave me 13%, 5W charger gave me 11%.

On a separate note,
- my iPad charges faster when I use the Griffin 3 Metre cable.
- iPhone charges slower when using third party $5 cables (iphone 4)
 

Rocko1

macrumors 68020
Nov 3, 2011
2,068
2
You can use it and NO, IT IS NOT FASTER!

The iPhone will only draw as much as needed.
Right, it will. We don't have the specs on what it can draw SOOOO if the phone can draw a max 1.3amps and the normal iphone charger only can deliver 1amp, the iPad charger will charge it faster as it delivers close to 2amps.
 

Menel

macrumors 603
Aug 4, 2011
6,199
1,050
It will work.

It won't degrade battery, does it degrade the iPad's battery? Simple uneducated reason could have deduced this, no EE background needed.

iPhone has to be designed to accept the additional current available, it may or may not. It's never felt faster to me on the iPad charger, but iPhone charges fast to me even on the regular charger. *shrug*
 

Hankster

macrumors 68020
Jan 30, 2008
2,348
250
Washington DC
There is long term effects. The battery is being charged with a current much greater than the battery itself. It will charge much faster. But it deteriorate the battery and can heat up the battery.
100% incorrect. Please post any proof of this assumption. It's 100% incorrect. Some posters here are worse than politicians, everything they assume is fact.

You can use it and NO, IT IS NOT FASTER!

The iPhone will only draw as much as needed.

I put it to the test. My wife's phone which had turned off at 0% on the iPad charger and my phone at 0% on the iPhone charger. Both charged at the same rate and reached full charge at the same time.
Have to 100% disagree if you're saying the iPad charger is not faster than the iPhone charger. My family has several iPads and iPhones. I can say with 100% certainty that when I charge my iPhone with my iPad charger is recharges much faster than when I use my iPhone charger.

Case in Point: The other night my iPhone was at 20% and I used my iPad charger. In less than 15 minutes my iPhone was over 50%. In 15 more minutes it was almost at 100%. Most nights I charge my iPhone with my iPhone charger and it takes about 45-60 minutes to get a full charge. With my iPad charger my iPhone is at 100% in about 30 minutes. I have done this so many times with my iPhone and my wife's iPhone.
 
Last edited:

KeepCalmPeople

macrumors 65816
Sep 5, 2012
1,287
342
San Francisco Bay Area, California
On a separate note,
- my iPad charges faster when I use the Griffin 3 Metre cable.
- iPhone charges slower when using third party $5 cables (iphone 4)
Agreed. The cable you use can impact the charge rate significantly. My wife has an iPad 3 and we bought some cheap 6ft cables. It barely charges using a cheap cable and the 10W charger - she has to use the Apple 3ft cable to get the lightning bolt in her battery indicator.

I think iPhones can draw more than 1 amp, but do not draw the full 2 amps available from the 10W charger.