Tiny cavities in energy storage devices form small vortices that help with charging, according to a research team led by TU ...

Hand warmers are typically sold as a pair. Just the front of each UT3 Lite heats up, but the back is a magnet so you can attach the two to use as a double-sided heater.

With so many on the market, it can be tough to know which batteries provide value and which won't work when it counts. We ...

Panasonic Eneloop is a very well regarded brand and model. The smaller battery packs boast well over 40,000 reviews rating them a stellar 4.8/5 star rating. These rechargeable batteries use NIMH ...

Everyday life is ruled by batteries. Everything, it seems, runs on juice, and not the delicious kind. The anxiety-inducing kind. The kind that leaves you scrambling through your junk drawer, hoping ...

The six types - from 50 Ah to 200 Ah, in four different sizes - of the new VARTA lithium-ion batteries offer more usable energy and a longer cycle life with reduced weight and size to power electrical ...

The newly added VARTA AGM and EFB battery types for cars and heavy commercial vehicles extend coverage across a broader range of vehicle applications in the aftermarket, offering enhanced energy ...

Rechargeable batteries are, among other things, one of the most crucial tools that you'll want to add to your earthquake emergency kit. When the grid is down, these devices can efficiently power ...

ZDNET experts put every product through rigorous testing and research to curate the best options for you. If you buy through our links, we may earn a commission. Learn Our Process 'ZDNET Recommends': ...

We may receive a commission on purchases made from links. Most households have several devices that run on AA or AAA batteries. This includes everything from TV remotes and alarm clocks to flashlights ...

ABERDEEN PROVING GROUND, Md. — Soldiers deploying in a wide range of climates for future conflicts will need batteries capable of powering their advanced electronics in extreme weather conditions. To ...