Is the battery empty, or is there something wrong with the device? That’s always a difficult question when your walkman or some other battery-powered device appears to be dead when you switch it on.

Autoblog aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission. Car battery testers have become one of those tools that move from ...

So many of our daily gadgets rely on batteries. From something as small as a computer mouse to the bulky units needed to run a car, we can't seem to get away from our need for them. That's why it can ...

The National Transportation Safety Board believes an internal short circuit within a single cell inside a lithium-ion battery led to a fire aboard a Boeing 787, shedding new light on the battery ...