Explore how a basic LED can be used as a tiny solar cell, generating measurable voltage under sunlight. This hands-on ...

Discover how to build a simple solar cell at home using everyday materials! This step-by-step tutorial demonstrates how to ...

Despite their limited use for testing wall chargers and power banks, USB inline testers let you compare power sources. In three videos, we take you through their features, and we also try an inline ...

Modern car batteries have a resting voltage of 12.6 volts, and will run at 13 to 14 volts once the alternator kicks in and ...

This simple tools allows you to troubleshoot nearly any RV or camper problem, potentially saving you a lot of time, hassle, and money in replacement parts.

Most modern cars have a normal parasitic draw of 20–85 mA. If it’s higher, your battery could drain fast — here’s how to ...

The Neoteck 3-in-1 pen multimeter is a great choice for DIYers and amateur tinkerers, especially at its price.

John Carlsen has more than a decade of experience testing and reviewing home tech products, with a major focus on smart home security. He earned his BS in journalism from Utah Valley University. In ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? When using generators, many people overlook or are confused by bonding and grounding.

A photo is circulating on social media that appears to show President Donald Trump using a walker, but it is AI-generated. The image was originally posted on X by Democratic strategist Keith Edwards, ...

Welcome back to our Tech Tip series! Today, we’ll review one of the most essential tools in every toolbox, a multimeter. Multimeters are most useful for a technician when they are dealing with ...

A female wild wolf living on the central coast of British Columbia was filmed pulling a crab trap out of the ocean to eat the bait — a never-before-seen behavior that could constitute the first ...