Learn how to make a simple lemon battery and use it as an emergency phone charger in this hands-on science experiment. Watch step-by-step as we cut lemons, prepare copper and aluminum electrodes, and ...

Multifunction devices are great...as long as you can find uses for all (or at least some) of those functions that you end up paying for.

This small kit converts USB-C to multiple USB connectors and DC barrel jacks, making it the most versatile tool in my tech bag.

Your phone's USB-C port can do more than just charge. We found 5 gadgets that use your USB connection to transform your ...

The Snap-n-Charge is small as power banks go, and only 3,200 mAh/16 Wh. This is good enough for a quick top-up of a smartphone or headphones. And a top-up is what you get -- the capacity is enough for ...

With the right adapter, the micro-USB port on your Fire TV Stick can be used for charging devices, external data storage, and even connecting over Ethernet.

How did we ever survive without our mobile gadgets? In a recent Consumer Reports survey, respondents who owned mobile devices brought at least one with them on their most recent vacations, and many ...

If you've ever wondered why so many gadgets made before the mid-2010s used the slim, tapered Micro-USB connector, and why almost everything today has moved to the oval-shaped USB-C port, the answer ...

It turns out, you don’t need massive lumen counts from your bike lights to see by in 2025. General wisdom has had it in recent years that you need around 1,000-1,500 lumens on unlit roads, but my most ...

First introduced in 1996, the Universal Serial Bus (USB) format was developed to replace the array of proprietary cables and connectors used by devices to connect to personal computers of the era. In ...

Oliver Haslam has been writing about phones, computers, games, and anything else that takes a battery or plugs in for more than he'd like to admit. With a focus on mobile and laptops, Oliver is never ...

We may receive a commission on purchases made from links. With nearly every tech gadget you buy, whether it's a smartphone, headphones, printer, or Bluetooth keyboard and mouse, you receive a USB ...