How much volts does it take to charge a iphone 5s?

I'm making a charger for a phone so and this question came to mind.^ From research I heard 5 and if this is correct can I use 6 or will that not work. If not can I direct some of the energy to say, an led to lessen the volts going to the phone

Around 1400

The correct voltage for an iPhone charger is 5V DC, which is what comes out of a USB socket. Don't risk anything else. It is much cheaper to buy a new charger than it is to buy a new iPhone 5

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