Discover how to make a homemade battery capable of charging your smartphone using simple materials like copper foil, aluminum ...

Sure you could go buy a USB charger off the shelf, but what fun would that be? Try making one yourself with a little help from a 9V battery and a few extra components. This simple hack on a standard ...

Apparently Monday is DIY day here at CrunchGear, as we have another project for you. Battery powered USB chargers are nothing new — but building one yourself, that’s something different. Using a few ...

Learn how to make a simple lemon battery and use it as an emergency phone charger in this hands-on science experiment. Watch ...

Posts from this topic will be added to your daily email digest and your homepage feed. The best charger when you’re trapped in a gas station during the apocalypse The best charger when you’re trapped ...

Instructables has a step-by-step for building your very own Altoids tin USB charger (dubbed the MintyBoost). This is probably one of the most detailed projects I've seen on Instructables (and is a ...