Will my phone use wattage from my psu if it's charging through USB?

xero99

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Aug 25, 2013
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How much wattage does a phone use while it's charging through USB, would it be enough to have an impact on the parts and cause a crash? I know this sounds like a stupid question but i'm wondering about this.
 
Solution
no usb ports are low wattage ports. they run off of 5v of the system but are not high amp like a video card. most phones and ipads dont use that much voltage to recharge when plugged in today. on a pc build it the 12v line that the cpu and gpu are on that you have to watch out for. a power supply not only has to have the wattage on the 12v line but the amps rating for the gpu and cpu. some cheap power supplys will say they have x amount of wattage on the 12v line but have low amp ratings.
no usb ports are low wattage ports. they run off of 5v of the system but are not high amp like a video card. most phones and ipads dont use that much voltage to recharge when plugged in today. on a pc build it the 12v line that the cpu and gpu are on that you have to watch out for. a power supply not only has to have the wattage on the 12v line but the amps rating for the gpu and cpu. some cheap power supplys will say they have x amount of wattage on the 12v line but have low amp ratings.
 
Solution