Specification No. of cells 8 - 12 2 - 3 Li-Poly RPM/V 1130 RMP/V Max. efficiency 83% Max. efficiency current 25 - 37 A (>75%) No load current / 10 V 2,9 A Current capacity 55 A/30 s Internal Resistance 30 mohm Dimensions (diameter. x lenght) 35x54 mm Shaft diameter 5 mm Weight with cables 181 g