Laptop batteries can be a bit of a mystery. You’ve been told when you bought your laptop that its battery can last a certain length of time, but can it really last that long? You don’t have to sit on ...

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

Other Android makers like Google, OnePlus and Xiaomi include comparable options -- often called Adaptive Charging, Optimized ...

Your car only starts reliably because two electrical workhorses share the load. The battery delivers instant power on demand, ...

Here's how car speedometers calculate how fast your vehicle is going. And here's why they may not always be accurate.

One school district cancelled classes after its buses were unable to run in the cold weather. A local mechanic shop is offering advice to make sure that doesn't happen to your car this winter.