Donut solid-state batteries tested, Tesla engineer quits, and solar value

On today's extraordinary episode of Quick Charge , we reflect on the fact that extraordinary claims require extraordinary evidence, and both Donut Labs AND Tesla are a long long way from turning everyone into believers. While Donut Labs' allegedly groundbreaking solid state battery tech gets put to the test, Tesla engineer Victor Nechita, who served as Tesla’s vehicle program manager for the Cybercab, has announced he is leaving the company as part of the recent exodus of the brand's top staff. Plus, a new study of 5,000 home sales showed that rooftop solar really does pay for itself – almost as soon as you put it in! Source Links Donut Lab’s ‘miracle’ solid-state battery confirms 0-80% charge in 4.5 min — but there’s a catch Verge unveils 370-mile electric motorcycle with solid state battery; sounds too good to be true? This battery is about to change the world in 3 months, or make this guy a fool Tesla Cybercab program manager exits ahead of launch Tesla rolls first steering wheel-less Cybercab unit off the line before solving autonomy Tesla launches legal war over ‘Cybercab’ name against seltzer company Report: solar could increase your home value by $39,500 to $79,000 EIA: 62% more renewable energy capacity is coming in 2026 Prefer listening to your podcasts? Audio-only versions of Quick Charge are now available on Apple Podcasts , Spotify , TuneIn , and our RSS feed for Overcast and other podcast players. New episodes of Quick Charge are (allegedly) recorded several times per week, most weeks. We’ll be posting bonus audio content from time to time as well, so be sure to follow and

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Donut solid-state batteries tested, Tesla engineer quits, and solar value is an episode from Quick Charge by 9to5Mac.

This episode is 13:25 long.

This episode was published on Feb 27, 2026.

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