A 3D printed 18650 to D-cell adapter would look quite nice… Finally, in order to make the battery spring contact the smaller surface area of the lithium cells, all you have to do is flip it ...

Last month, the CPSC published a warning to its website asking buyers not to purchase 18650 lithium-ion battery cells ... short-circuit when they come into contact with metal objects, such ...

Recently, BAK Battery officially launched its tabless 18650 D-series products, bringing a comprehensive upgrade in performance and setting a new benchmark for user experience. The 18650 battery ...