ITEM NAME:6S 22A For Li-ion Lithium Battery 18650 Charger PCB BMS Protection Board C DNU Descriptio n Specificationï ¼Å¡.Material: PCB. for 18650 dedicated. Short circuit protection conditions: external load short circuit. Product list :1pcs lithium battery protection board. 6 series 22V24V Power Tools Lithium Battery Protection Plate.