For a monthly fee, customers can have batteries tied into their home’s electric system. Bandera Electric controls them, ...

The former Tesla engineers who founded Pila Energy say their battery can make it easier and more affordable for consumers to ...

In South Africa, where a stable electricity supply is never a certainty, a reliable backup power source is essential for ...

Is your phone, tablet, or laptop typically in the battery red zone before the day's end? These portable chargers and power banks give you the most boost when you're out of juice. I’m a Mobile ...

Light bulbs with backup batteries use electricity from the socket to keep the internal battery charged. After the initial charge, which takes about 10 hours, every time you turn on the light ...