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

Finnish startup Donut Lab's third test shows its solid-state battery retains charge for 10 days, proving it isn't a supercapacitor.

Donut Lab released the third independent test of its controversial solid-state battery, this time trying to prove it's not a ...

Donut Lab's third independent VTT test confirms its solid-state battery retains 97.7% capacity after 240 hours idle. Energy density and cycle life remain untested.

It is common knowledge that communicating over WiFi is more efficient than using the 5G cellular network, but by how much exactly? That’s exactly what PhoneBuff set out to measure in its latest ...

Research firm Geotab found that high-voltage fast charging is a leading contributor to battery aging and cell degradation. Apparently, battery packs degrade at a faster rate when frequently charged at ...

A broad new smartphone test has found that Apple devices lead the industry for battery life, with the iPhone 17 Pro Max ranking as the longest-lasting phone tested and Apple tied as the top overall ...

Industry Insight from Reuters Events, a part of Thomson Reuters. As battery manufacturing spreads and prices soften, developers are diversifying supply and implementing new deployment strategies to ...

Advantest Corp. seeks to speed up its production capacity expansion plans for chip testing equipment, a sign of upbeat sentiment around spending on artificial intelligence hardware. The chip equipment ...