Batteries are notoriously difficult pieces of technology to deal with reliably. They often need specific temperatures, charge ...

Finnish-Estonian bikemaker Verge has been in plenty of headlines in the past few years. Now, it’s time for its spin-off ...

I made this amazing battery pack using 18650 cells, performing about 3X better than a LiPo battery of roughly the same weight ...

New independent tests reveal a staggering 28% difference in battery life between the Snapdragon and Exynos chip Galaxy S26.

I salvaged a large batch of 18650 cells from old laptop batteries and needed a way to figure out which ones were still worth ...

Donut Lab’s solid-state, lithium-free battery has undergone a second round of independent testing, revealing both promising results and critical gaps. Conducted by Finland’s VTT research center, the ...

The Finnish startup’s battery not only survived extreme heat conditions, it actually gained capacity. The Finnish startup’s battery not only survived extreme heat conditions, it actually gained ...

Donut Lab has released a second set of independent test results for its controversial solid-state battery — this time proving the cell can discharge at extreme temperatures up to 100°C and actually ...

PCWorld tested laptop battery life across major processor platforms using a new Netflix streaming benchmark with the anime ‘One Piece’ at 1080p resolution. Intel Lunar Lake achieved the longest ...

The Finnish startup’s pack can charge from 0 to 80 percent in under 5 minutes, according to its first independent test. The Finnish startup’s pack can charge from 0 to 80 percent in under 5 minutes, ...

Donut Lab says it will release independent lab tests on its production-ready solid-state batteries over the next several weeks. Skepticism abounds after the company announced at CES that it had a ...

Through the looking glass: A century after Thomas Edison's early experiments with nickel-iron batteries, researchers at UCLA and their international collaborators have revived the concept using modern ...