In this video I’m showing how I’ve built a very simple battery backup circuit for my home alarm system. The circuit charges a 12v lead acid battery and in an event of a power loss, it transfers the ...

The new Bolt EV delivers a huge charging boost compared to its predecessor, and shows that small EVs can go the distance.

The Finnish firm claims it has beaten the world’s largest carmakers and battery giants to commercializing solid-state cells ...

As power grids add more renewable energy and large-scale battery storage, utilities face a growing challenge: how to ...

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, ...

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'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.

One homeowner recently found out exactly what their home battery system was capable of during a severe storm blackout.

With a clear view of plating, Bai’s team was able to mark the exact voltage and timing of when and how plating begins, using that data to develop a “performance map.” ...

Lenovo has announced two new tablets, each designed for different environments. The ThinkTab X11 targets field and rugged use, while the Idea Tab Pro Gen ...

It appears that a vivo phone may soon join the growing list of smartphones featuring 10,000mAh or larger batteries. According to a tipster, the company is currently testing such a device. Tipster ...

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 ...