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Description
OMPHOBBY M4 MAX Helicopter 85A Brushless ESC User Manual
Key Features:
85A continuous / 130A peak current for high-performance applications
10A BEC output with adjustable voltage (6V / 7.4V / 8.4V*)
Advanced telemetry support: current, voltage, temperature, RPM, throttle, and ESC status
Compatible with MSH Brain, RotorFlight, VBar Control, Futaba SBUS-2 telemetry protocols
RPM signal over wire – no external sensor needed
Dedicated programming port for LCD programming card or Bluetooth module
32-bit processor at 170MHz for fast response
Low-heat MOSFET design for improved efficiency and burst current capability
Self-diagnostics on power-up to detect shorts, voltage issues, and throttle anomalies
High-efficiency heat sink case for better cooling under load
Dual governor modes: Helicopter Store Mode (default) or External Governor
Multiple safety protections: startup, overheat, overload, low voltage, signal loss, and overcurrent
Specifications:
Max Continuous Current: 85A
Max Peak Current: 130A
Input Voltage: 3–6S LiPo
BEC Voltage: 6V / 7.4V / 8.4V (selectable)
BEC Current: 10A
Dimensions: 71 × 36 × 33 mm
Weight: 90g
