I am running a project where I will have a small steam engine turning a dynamo. the dynamo produces 12VDC no load and 10VDC 10 watts under load. My plan was to buy a car usb charger and connect it up as a fun experiment with my son as an alternative way to charge his iPhone and learn about the industrial revolution. Trouble is how will a car charger cope with 10VDC instead of 12VDC input?
Thats my question and thanks in advance for your help.