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

Often times, e-bikes seek to build the biggest battery with the most range. But what if you want to take a couple lunch loops on your bike and only need 20 minutes of charge? That’s [Seth] from Berm ...

A 27-year-old engineer has powered an electric car using a homemade battery pack built out of discarded vapes.