CNET has tested hundreds of cordless vacuum models over the years, evaluating their cleaning ability on different surfaces as well as other features and overall performance.

Donut Lab’s latest solid-state battery prototype has undergone its third round of testing and the results have sparked a mix of optimism and concern. In this evaluation, the battery demonstrated 97.7% ...

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 ...