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Is it bad to charge iPhone 4 with iPad charger?

I use sometimes my iPad charger to charge my iphone, it has more amperage so it charges faster.


But I think my iphone battery is lasting less than normal during the day.

Is it possible to iPad charger damage the iPhone 4 battery?


I've been using my iPhone for only 6 months.

iPhone 4, iOS 5

Posted on Jan 10, 2012 10:33 AM

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Question marked as Best reply

Posted on Jan 10, 2012 10:35 AM

Rapha Mingattos wrote:

Is it possible to iPad charger damage the iPhone 4 battery?


No. It will just charge faster.

4 replies

Jan 10, 2012 11:26 AM in response to Rapha Mingattos

I use sometimes my iPad charger to charge my iPhone, it has more amperage so it charges faster.

Probably not true, side by side using the iPad AC charger vs the iPhone AC charger the iPhone should charge at the same rate. The iPad charger does not feed the device, it is designed to allow the device to draw. The iPhone is not going to draw more than 5 watts from the charger, even though the iPad charger can supply 10 watts. So no, the iPad charger is not damaging your iPhone's battery. Pitting either the iPhone or the iPad charger against charging from a USB port on a computer, yes, either charger will likely allow the iPhone to charge faster than the computer.

But I think my iphone battery is lasting less than normal during the day.

Make sure that you are following Apple's recommendations of a minimum of one complete charging cycle per month to keep all of the electrons moving and thus, maintain battery health. Also turn off any services that you may not need to limit how much your iPhone drains its battery. For example, if you do not use Bluetooth, then there is no need to be broadcasting BT, the same goes for Wi-Fi.


http://www.apple.com/batteries/iphone.html

Is it bad to charge iPhone 4 with iPad charger?

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