A multimeter might look intimidating, but learning to use this simple electrician's tool will come in handy during a number of every day tasks.

WHEN Nigel Morris agreed to have a smart meter installed in his flat he thought it would help him keep on top of his energy bills. But the 58-year-old, from Shropshire, was horrified when a bill ...

Begin by connecting pin 85 of the relay to a clean ground point on the vehicle chassis or the negative terminal of the ...

Wiring a rocker switch isn’t complicated once you understand the logic behind it. Every connection serves a purpose, and when ...

Having a battery backup feels like you’re prepared for anything—until the lights go out and you realize it’s not actually ...

Without the help of an auto shop, your first attempt may be messy and difficult, but the work will only get easier the more ...

Lithium ion batteries are all around you because they're lightweight, powerful, and rechargeable. However, when damaged, overcharged, or improperly stored, they can overheat, catch fire, or even ...

We test nearly 40 battery-powered and corded chainsaws for cutting speed, handling, and safety. These seven come out on ...

CEOs of artificial-intelligence companies want to spend hundreds of billions of dollars building their energy-gobbling data ...