Product Description Code Red Headsets sells a new aftermarket replacement Battery for Motorola PMNN4077C. Motorola: XPR6100, XPR6300, XPR6350, XPR6380, XPR6500, XPR6550, XPR6580.Voltage: 7.2 V Capacity: 2700 mAh 19.4 Wh Type: 19.4 Wh Li-lon