Presenting Drone 20A 2-4S Mini BLHeli-S OPTO ESC for FPV Race RC Helicopter. 20A 2-4S Mini BLHeli-S OPTO ESC used mainly for FPV Race RC Helicopter with great functional and high-performance and the max working frequency will be 50MHz. Built-in automatic protection of temperature sensor and this ESC is compatible with a 2-4S lipo battery.
The ESC support BLHeli-S firmware Can easily upgrade the firmware or parameter online, also support all functions of Blheli_S. It can be programmed to set up the throttle etc. It also supports two-way mode and FPV 3D mode.
Applications:
Vehicles & Remote Control Toys
IX2 90mm Micro FPV Racing kit
Mark4 5 inch 225mm carbon fiber frame kit
ARF Quadcopter Advanced Combo Kit
reComputer Jetson-20-1-H2 with Jetson Xavier NX module, Aluminium Case, Pre-Installed JetPack System (Without Adapter)
Robocat 270 Racing Quadcopter Frame
PDB-XT60 with BEC 5V and 12V 





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