Can 9 volts charge a 5s?

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Can 9 volts charge a 5s?

I made a solar panel USB charger and it works with a galaxy s5, but not with the 5s. Does the s5 require less power? I tried searching this question but couldn't find much. I'm using a 9v 1w solar panel

iPhone 5s, iOS 8.1.1

Posted on Mar 4, 2015 8:16 PM

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Answer 1

Kappy

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Mar 4, 2015 8:35 PM in response to NoNukeForYou

The iPhone requires 5 volts @ 1 amp

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Answer 2

NoNukeForYou Author

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Mar 4, 2015 8:41 PM in response to Kappy

Ah okay, so I would need a larger power input

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Answer 3

Rudegar

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Mar 5, 2015 9:01 AM in response to NoNukeForYou

amps are pulled so you can't really have too many of those

but volts are not so 9volts charing would be close to double the volts so that would likely damage the device

unless some sort of transforming or other volts lowering circuit would between the panel and the ios device

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Answer 4

Mar 5, 2015 1:33 PM in response to NoNukeForYou

The requirements for the iPhone are 5 volts +- 0.5 volts (4.5 to 5.5) at a minimum of 1/2 amp (2.5 watts). For fast charging it must be 1 amp (5 watts) or more (the "more" doesn't improve things; the phone will only use 1 amp regardless of what is available).

The power requirements for Samsung are the same. If the panel really supplies 9 volts it will probably damage either phone.

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