Amazon slashed this must-have Thermacell mosquito repeller to the cheapest price we've ever seen on Amazon in a huge Prime ...

I made this amazing battery pack using 18650 cells, performing about 3X better than a LiPo battery of roughly the same weight and size. So instead of flying for 15 min, now you can fly for 45 min.

Amazon slashes £200 smart watch with 'exceptional battery life' to £40 in early Prime Day deal (Image: Amazon) ...

What are lithium-ion batteries? Lithium-ion batteries are rechargeable batteries that are commonly used in mobile phones, laptops, tablets, cameras, watches and more.

You always need them when you don’t have them — so grab your batteries, power banks and car jump starters now.

EU data reveals Samsung phone batteries, like those in the Galaxy S25 series, are rated for 2,000 charge cycles, doubling iPhone figures.

Whether you're trekking through rugged terrain or illuminating the darkness in the outdoors, we tested the brightest flashlights of 2025 for camping, hiking, and more.

Some radios, including the Panasonic RF-2400D Portable AM/FM Radio, come with a battery backup port, so you can use it wired until you need to rely on the batteries.

To find the best laptops, we employ thorough hands-on, testing-based evaluations of laptop PCs from all the top brands. Our recommendations pinpoint the best budget, premium, gaming laptop, 2-in-1 ...

Featuring 6 pieces of 18650 rechargeable batteries and high-quality white LEDs, along with three lighting modes (SOS, low, and high), it is bright and functional enough for various uses. The spotlight ...

Read the latest research on everything from new longer life batteries and batteries with viruses to a nano-size battery.