Product Description Code Red Headsets sells a new aftermarket replacement Battery for Motorola RLN6305Voltage: 7.2V Capaclity: 2200 mAh Type: Li-IonMotorola: RDX Series, RDU2020, RDU2080d, RDU4100, RDU4160d, RDV2020, RDV2080d, RDV5100, CP110.