There are a number of precautions you can take when working with mains power. We’ve all used the simple in-line power strip so you can quickly switch off the current, but [Yann] has included a ...

We also liked that the power bank can be plugged into the mains and used as a wireless charging pad, meaning it never eats into the power bank’s battery. This is one of the niftiest inventions ...

Being able to control something is nice, but being able to tell if a mains-connected appliance is on or not is just as valuable. [Shane] has a really simple circuit he’s been working on to do ...

Having a power bank in your bag is the smart thing to do because you don’t want to end up with a dead battery on your phone, especially when it will be a while before you reach home. Thankfully ...