As part of its 'I Donut Believe' campaign, Finnish battery developer Donut Lab has published further independent test results for its disputed solid-state ...

VTT's second independent test shows Donut Lab's solid-state cell delivered 110% capacity at 80°C and survived 100°C discharge, but key claims remain unproven.

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

The Donut Lab solid-state battery was heated to the boiling point of water. Here’s what happened next.

Since the popularity of smartphones, performance benchmarks have always been one of the most important propaganda points. At present, there are various benchmarks for performance, memory, and GPU, ...

Battery-powered devices are prevalent in society, which is only set to increase significantly as the electric vehicle market expands. This results in demand for higher-powered, longer-lasting, and ...

Tired of condensation wrecking your shed tools or greenhouse gear? I built a no-frills ESP32 + DHT22 node that wakes every 15 minutes, grabs temp/humidity data, beams it over Wi-Fi, and sleeps—running ...