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Here's a skill that could come in handy. Imagine your phone is dying and you have no way to charge it–the power has been out all day, or you're stranded somewhere and your car's battery is dead.
In a situation like that, you might still have access to your car charger and some batteries. If only you could get the power from those batteries into your phone. Well, you can.
In the video below, Mike from the School of Self Reliance walks you through the process.
