How many amps or watts does an iPhone draw on a 12v charger?

[mrsir2009]

Hey, does anyone know how many amps or watts an iPhone draws while charging on a 12 volt charger?

Thanks

 

[wharzhee]

sorry, but er. 12v charger?

anyway, an iphone charges at abt ~5V at ~1A, so that's about ~5W

i don't know if u r trying to put a direct 12V, but that 12V must be step down to its intake specification of about ~5V.

 

[Intell]

The iPhone can draw a maximum of 1.25 amps at five volts. This is about 7(?) watts. My electrical conversion is a bit rusty. It depends on your charger. Some output only 1 amp, others 0.5 amps.

 

[mrsir2009]

sorry, but er. 12v charger?

anyway, an iphone charges at abt ~5V at ~1A, so that's about ~5W

i don't know if u r trying to put a direct 12V, but that 12V must be step down to its intake specification of about ~5V.

Yep - It's a modified car charger