I got linked to this video. https/youtu.be/q_YUxHbbC7Y
Seems quite legit and I would like to give it a try. Could I be risking blowing up my phone?
That is such a big lie. The output of most ports is a max of 5 volts. What might happen when you try it is that your phone wil be fried, the port will be damaged, the battery will be fired, or nothing happens.