Steve I watched all four videos. What a shame! I loved the little Daisy car. Thanks for bringing up these issues. I will not be using lithium batteries to power my sidecar, but am learning all I can about the lithium packs for potential future use on projects. We all use the lithium batteries and charger daily with little concern for any dangers they potentially represent. Properly setup lithium systems would seem to pose no more threat than alternative power sources. The major lesson to be learned from this video and others is that the engineers who design commercial systems do so by following certain well founded parameters based on science & testing. Amateur fabricators would do well not to significantly deviate from proven practice when assembling component parts, as each has a necessary function which contributes to the successful and safe operation of any particular system. I like innovation, but I don't ignore my own lack of understanding when it comes to utilizing specific, proven technology. I suppose my decision to stick with lead cell batteries has as much to do with my still fledgling knowledge of lithium battery systems as it does with wanting the additional weight to balance the sidecar handling. I do understand a great deal more about the safe wiring and charging of these 12 volt systems in series or parallel, but am still in the dark as it pertains to the controllers and battery management systems. I'm relying totally at this point on the designing engineers to have sorted this out for me.
The fire footage was instructive. The lithium batteries remind me of magnesium or worse white phosphorus burning. I've fired many rounds of "willie Pete" during various altercations & can testify to it's horrible effects. During the lithium battery install I was curious that no mention of controller or specialized lithium battery charger was made, fusing, wiring etc. I was also put off by the lack of attention paid to fixing some very obvious safety issues, steering wheel etc. before adding more power... and why did they think more power was important for this little parade toy?
Old guy proceeding with some added caution!
Rick C.