9V batteries are often found in devices that aren’t used very often. If you use a NiCd rechargeable battery you may find it completely discharged by the time you need it. Capacitors on the other ...

It’s a project called snapVCC, and it turns a 9 volt battery into a regulated 3.3 or 5 volt supply. The idea behind snapVCC is simple enough; just add a circuit board to the top of a nine volt ...

Here's how to safely set steel wool (also called wire wool) alight using nothing more than a 9V battery. It's not difficult but you must take care as the wool and the dish can get very hot - adult ...

Apple's new entry-level iPhone 16e is expected to have something in common with the higher-end iPhone 17 Pro coming later ...

Which means it’s time to at least check your smoke detectors.

With the iPhone 16e now available to purchase, we had access to the first teardown of this device. Here's what you need to ...