2X 3S 40A 18650 Li-Ion Lithium Battery Board for Drill Motor 11.1V 127374
Type:3S 40A 18650 Lithium Battery Protection Board. Note 1: The successful of the drill requires three 15C-20C power battery, or six 10C-15C power battery (ordinary 18650 can not the drill !). Break the MOS tube.