Hobbywing Pentium-18A brushless ESC Hobbywing Pentium-18A brushless ESC Specification 1.1 Output: Continues 18A, Burst 22A up to 10 Secs. 1.2 Input Voltage: 5.6V --- 16.8V ( Lithium : 2 ?? 4s or NiMH/NiCd 5 -12 Cells) 1.3 BEC (Battery Elimination Circuit) Output?linear mode BEC 2A 1.4 Max Speed: 210,000rpm for 2 Poles BLM, 70,000rpm for 6 poles BLM, 35,000rpm for 12 poles BLM. (BLM: BrushLess Motor) 1.5 Size?24mm*45mm*11mm(width*length*height) 1.6 Weight: 19g 1.7 Packaging include: 3 sets of gold plated motor connectors and heat-shrink tubings (Remark: motor connectors and heat-shrink tubings need to be purchased additionally) 2 Features 2.1 Safety Arming Feature: Regardless the Throttle Stick position, the motor will not spin after battery connected. This will prevent any injury happened. 2.2 Throttle Calibration: Throttle range can be configured to provide best throttling linearity, fully compatible with all market available transmitters. 2.3 Programmable Items: ?Brake Settings?brake enabled / brake disabled, default is brake disabled ?Battery Type?Li-xx(Li-ion or Li-poly) / Ni-xx(NiMh or Nicd)?default is Li-xx. ?Low Voltage Protection Mode(Cutoff Mode) ?power reducing / power cutoff, default is power reducing. ?Low Voltage Protection Threshold(Cutoff Threshold) ?low / medium / high, default is medium cutoff voltage. 1) For Li-xx battery?number of battery cells are judged automatically?low / medium / high cutoff voltage for each cell are: 2.6V/2.85V/3.1V. For example: 3 Cells Li-Poly, when medium cutoff voltage is set, the cutoff voltage is: 2.85*3=8.55V. 2) For Ni-xx battery, low / medium / high cutoff voltages are 0%/45%/60% of the startup voltage (0% means the low voltage cutoff protection function is disabled) . For example: a 10 cells NiMH battery pack, fully charged voltage is 1.44*10=14.4V, when medium cutoff voltage is set, the cutoff voltage is : 14.4*45%=6.5V ?Startup mode: normal / soft / super-soft, default is normal startup. ?Timing: low / medium / high, default is medium timing. In normal cases, low timing can be used for most motors. But for high efficiency, we recommend the Low timing for 2 poles motor and Medium timing for 6 poles and above. For higher speed, High timing could be used. 2.4 Full Protection Features: Low-voltage cutoff protection / over-heat protection / throttle signal lost protection. 3 Advantages 3.1 Military Standard Capacitor with extremely low resistance used on voltage input section, this will increase the ability of prevention of unwanted RF Noise/ Interference during flying. 3.2 Extreme low resistance, super current endurance. 3.3 Microprocessor and BEC use separate voltage regulator IC, with good anti-jamming capability.