Cylindrical 18650 Case Cell Holder 1*1Product Description 18650 battery bracket Used for cylindrical lithium-ion cells packing Flame retardant plastic 18650 cell holder This battery holder is with very good flexibility. Using this holder, we can make different battery pack , such as 12 v, 24 v, 36v battery pack, which can be used as electric bicycle batteries, electric tools battery, storage battery and electric car battery, etc. This holder material is flame retardant PA66, which is with very good security. And in the actual application, the operation is very simple. And the battery pack with holder has beautiful appearance , reasonable structure, good heat dissipation performance and vibration function. So it is very good assembly parts.n18650 cell holdern18650 cell bracketnØ18.5mm