Motorola Original EPNN7994A: Rapid Rate Charger Transformer w/U.S. plug. Must be used with Desktop Charger part number WPLN4137. This part cannot be plugged directly into the radio itself. Both the AC Charger Transformer and the Base Unit can be purchased together using part number WPLN4138. Fits: CP150, CP200 NOTE: To avoid confusion, for ordering purposes, the suffix letter after the stock number is not listed.