Previous 1 2 27 Replies Latest reply: Aug 9, 2012 5:05 AM by gordonoga
Level 1 (0 points)

Hi !

Do you think a 4 amp charger for iPad 3 could speed up the charging time?

Thank's

iPhone 4, iOS 5, iPhone 4S
• Level 5 (6,127 points)

Best charger to use with you new iPad 3 is the one that

came with it.

• Level 2 (365 points)

Since the iPad only draws 1 amp(10watts) it may cause the capacitors the leak excess voltage. Conclusion A 4 amp chager may cause a voltage spike destroying the iPad. I would suggest using the adapter that came with the IPad.

• Level 7 (25,525 points)

"Since the iPad only draws 1 amp(10watts) it may cause the capacitors the leak excess voltage. Conclusion A 4 amp chager may cause a voltage spike destroying the iPad. I would suggest using the adapter that came with the IPad."

no this is 100% wrong

it's 5volts and watt == volt * amps

and it's draws! not being feed

it draws the amps out of the charger as much as it require

if the charger is able to supply 4amps or 40MEGA amps dont mean anything at all

it's all down to ohms law

volt spikes have nothing to do with how much amp a device can supply

• Level 1 (0 points)

iPad use 2,1 amps charger. Not 1 amp: 5volt * 2,1 amps = 10,2 watts

Theorically, it should not be any danger. 5 volt * 4,2 amps = 20,8 watts

In theory, it's voltage can be problematic.

The amp is the flow.

Question: Does iPad supports 4 amps ?

The iPhone accept 2 amps charger's iPad !

Thank's

• Level 7 (25,525 points)

I doubt it

it will draw as much amps as it is made to draw

when more is drawn the volts automaticly starts to lower

so if it was able to support higher amps then they had to supply a

measuring the volt levels at charging times to adjust it's internal resistence

to make sure it didn't draw too much so the volt levels would get too low

doubt apple would include that system when their chargers only supply 10watt

• Level 1 (0 points)

I believe that Apple provides a 10 watt charger to save \$\$\$\$.

I always use the chager's iPad for my iphone and ipod

I'm septic.

I would like to test it.

Thank's

• Level 3 (945 points)

I know that using the iPad charger on my phone carges the phone faster than if I use the one that came with the phone.

• Level 6 (13,241 points)

IF the charger has been manufactured properly, it absolutely positively will not harm the iPad but that's one heck of a big "IF," especially since a 4A charger will not provide any benefit whatsoever.  4A is capability, not actual charge current.  The iPad circuitry determines the actual current.

• Level 6 (13,241 points)

giguerem wrote:

I believe that Apple provides a 10 watt charger to save \$\$\$\$.

• Level 2 (365 points)

Come on. I'm not gonna do math after 48 hours of no sleep. I do know though that higher amped 3rd party chargers do damage devices. I repair them all the time.

• Level 2 (365 points)

Oh and its not the amps that kill it. It's the leaky compacitors that spike the voltage beyond 5 volts

• Level 6 (13,241 points)

tyler39 wrote:

I do know though that higher amped 3rd party chargers do damage devices.

It's not the amerage capability that causes the damage.  It's poor design and/or manufacturing techniques.

• Level 2 (365 points)

Hence why I said compacitors that leak excess voltage.

• Level 6 (13,241 points)

tyler39 wrote:

Hence why I said compacitors that leak excess voltage.

Agreed.  I posted before I saw your comment.  My position is that even lower-amperage devices can cause damage if poorly designed and/or manufactured.

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