Donut Lab solid-state battery retest by Finland’s VTT shows capacity rising to 110% at 80C, but weight data is still missing.

Earlier this year, Finnish startup Donut Lab grabbed headlines after claiming it had developed the first production-ready solid-state EV battery capable of charging in about five minutes. The ...

Donut Lab battery validation adds a 10-day room-temperature retention figure of 97.7%, while energy density and weight data remain absent.

A battery test shows iPhone 17 gains are real but modest, with eSIM-only models likely lasting longer thanks to larger ...

Basically, VTT hooked up Donut Lab’s to a battery tester and left it idle for 10 days, while measuring the voltage every 10 seconds. According to the results, the cell demonstrated high stability, ...

Maybe the tide has finally turned for Tensor with a very fresh battery drain test showing that a brand new Pixel 10 Pro can best Apple’s middle-child iPhone 16 Pro by an impressive 45 minutes. In the ...

Following the iPhone 15 release on Friday, the first battery test results are coming in. Apple touted the efficiency of the 3nm A17 Pro chip, so anticipation was high for the iPhone 15 Pro and Pro Max ...

We've tested the best phones you can buy in the US alongside many popular mid-range and budget models. One of the most important and objective tests we conduct is a standardized battery test. We're ...