Comment by jeffbee

Which part particularly debunks? It appears ambivalent to me. For example, pages 20-21 seem to conclude that "The use of 18650 cells with the same form factor but different internal chemistries creates the risk that a replacement 18650 will have a different internal chemistry from the original 18650, placing individuals and independent repair shops at risk of inadvertently causing thermal runaway events." As a person who already had to flee one structure fire caused by a DIY hoverboard battery, I am sympathetic to this line of argument.