Medical device 2NLP402050 TYPE Li-Polymer Battery Pack (2S1P) Rating 7.4V, 360mAh Use 치과의료기 Size 53*20*8.6 (WIRE CONNECTOR 제외) Weight 17g 4NLP603258NX TYPE Li-Polymer Battery Pack (4S1P) Rating 14.8V, 1,200mAh Use 치과의료기 Size 61*37*24 (WIRE CONNECTOR 제외) Weight 110g