I asked about it in another thread higher up https://news.ycombinator.com/item?id=20502338 https://news.ycombinator.com/item?id=20502338 In my trainings I've s

I asked about it in another thread higher up https://news.ycombinator.com/item?id=20502338 https://news.ycombinator.com/item?id=20502338 In my trainings I've specifically been told not to use Lithium ion batteries in critical applications, like headlamps and beacons.