The Kenwood KSC-37 is a rapid rate desktop charger that is designed to work with the Kenwood TK-3230 series radios. This is a rapid charge unit for the Kenwood KNB-46L Lithium Ion Battery Pack. This is a top end high quality OEM charger by Kenwood. Kenwood USA is a leading developer and manufacturer of consumer electronics and communications equipment. Founded in the United States in 1961, Kenwood USA is the largest sales subsidiary of Kenwood Corporation of Japan and is recognized by consumers and industry professionals for providing products known for quality, performance, and value.