HQRP High Capacity Battery Compatible with Motorola NNTN4497CR, CP250, GP3188 Portable Two-Way Radio + HQRP Coaster HQRP&reg; Replacement Rechargeable Battery plus HQRP&reg; Coaster; Battery Voltage: 7.5 Volt Capacity: 1800 mAh; Ni-Mh; HQRP&reg; Ni-MH Batteries Provide More Talk-Time Per Shift And Are Less Prone To Memory Effect; 200 Days warranty!