How can you charge a mobile phone when you don't have the charger? One way is to use a voltage divider to reduce the voltage from a car battery down to the voltage that your phone needs. But what if it's an emergency and you are stuck in a disaster zone without your electronics lab? I'll show you how to MacGyver your way out of trouble with scavenged parts. Hack a Day Featured! Post your smarky remarks there. http://redd.it/2wskne Like the vids? Chuck a fewcouple shekels into the hat! It really helps with the budget troll for doing the teardowns. http://www.Patreon.com/AvE