Donut Lab says latest test proves its solid-state battery isn’t a supercapacitor.

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, ...

Here's How To Tell If A CR2032 Battery Is Bad

Found in Apple AirTags, the CR2032 button cell battery, also known as a coin battery, is actually surprisingly easy to test ...

Further Donut Lab Solid-State Battery Test Shows 110% Capacity at 80C

Donut Lab solid-state battery retest by Finland’s VTT shows capacity rising to 110% at 80C, but weight data is still missing.
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Testing Your Car Battery Is So Easy Everyone Should Do It

Testing your battery regularly will prevent a dead battery from ruining your day. There’s only one way to answer the question ...
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Independent Testing Shows Donut Lab's Fast-Charging Solid-State Battery Works Reliably at High Temps

Donut Lab released the results of the second independent test showing that its solid-state battery can handle extreme heat without affecting its performance ...
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Latest Developments in Cell Battery Testing Equipment

Modern electronic technologies like smartphones, laptops, and electric vehicles (EVs) are in high demand. As these technologies evolve with more and more functionalities, the demand for better, more ...
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Where You Can Get A Car Battery Tested (And How Often It Should Be Checked)

Car batteries tend to die at the most inconvenient moments, so periodic testing is the best way to avoid these troubles. Knowing what causes repeated battery failures can help you stay ahead of the ...
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First testing of grid-scale battery technology begins at the grid storage launchpad

The Department of Energy's Pacific Northwest National Laboratory has begun the first tests of a utility-grade battery at the new Grid Storage Launchpad, a major milestone for DOE's investment in ...