Lumafield’s Battery Quality Report exposes hidden risks in 18650 cells; 1 in 13 low-cost units have dangerous defects. See how CT helps enforce safety.

Content warning: this is something of a marketing pitch, but it is worth reading. It’s about using CT scans to find safety flaws in 18650 cell manufacturing. It’s put out by the manufacturer of the CT equipment, i.e. not trying to sell anything to most flashlight users.