Scheduled recording Friday April 15 2022

Episode published:

https://www.youtube.com/watch?v=OFljFT6DrfY

Intro and Presentations

Follow-up and corrections

Disclaimer to describe how this is a developing topic and how the audience can expect a short update section on the next episode.

Also meant to highlight that despite a commitment to factual and accurate information there might be some accidental errors in our statements, and audience can find corrections pinned as YouTube comment (if any)

NYC S20 failure and fire observations

Hsiang video

https://www.youtube.com/watch?v=8h41p13e4TU&t=26s

U-stride video

https://www.youtube.com/watch?v=iFQB_1nv6NQ

Step by step commentary

  1. Context: full-ish charge, 10min ride to the RDV point, ~1min30 riding before the incident,
  2. A few successive hard acceleration / hard breaking sequences
  3. Braking over-power, quickly followed by mainboard failure & cutout
  4. Mainboard components burning and short
  5. Battery fire

Explain the failure and fire