I was just thinking if you are on your computer anyway would it just use some of the excess electricity that your computer would have wasted or would it be worse than charging your phone from a charger while using your laptop separately.
I was just thinking if you are on your computer anyway would it just use some of the excess electricity that your computer would have wasted or would it be worse than charging your phone from a charger while using your laptop separately.
Adding a 30 watt phone is going to be maybe 5% of the PC load. So it could bring it up to a few percent. But that is insignificant compared to the normal swings of 200+ watts between normal and load.