Building a portable lamp with a 9V battery and LED bulb is a simple, creative DIY project that anyone can try. This video provides clear, step-by-step instructions for assembling a functional lamp ...

This LED tea light contains a button battery ... Check to see which products already in your house use button batteries. ... Lauren Kirchner is an investigative reporter on the special projects ...

Nissan is using old Leaf batteries in a very meta way: To power streetlights that will make roads safer for vehicles and pedestrians. Called "The Light Reborn," it uses a solar panel that charges ...