A2212 motor specification:KV: 1000Max Efficiency: 80%Max Efficiency Current: 4-10A (>75%)Current Capacity: 12A/ 60sNo Load Current @ 10V: 0.5ANo. Of Cells: 2-3 Li-PolyMotor Dimensions: ��27.5* 30mmShaft Diameter: ��3.17mmd C