XDFly HPro 125A ESC – 3-8S SBEC – For 500/550 Class RC Helicopters

The XDFly HPro 125A is a high-performance electronic speed controller designed specifically for 500–550 class RC helicopters.With strong current capacity, a fast 32-bit G4 processor and an adjustable high-power SBEC, it delivers smooth, reliable, and ultra-responsive performance for demanding 3D and sport pilots.

Key Features

125A continuous / 200A burst output for reliable power delivery

3S to 8S LiPo compatibility (11.1V – 29.6V)

Integrated SBEC (6–12V adjustable) to power servos, FBL, and receiver

32-bit STM32G4 processor for ultra-precise throttle control

Helicopter-optimized governor mode for locked-in headspeed

Active cooling system with heatsink + smart fan (activates above 40°C)

Startup self-check (power, signal, voltage, motor phase)

Stall-landing protection to reduce motor damage in emergency situations

Telemetry support (compatible with popular FBL systems)

Parameter tuning via app or compatible radios

Technical Specifications

Continuous Current: 125A

Burst Current: 200A

Input Voltage: 3–8S LiPo

BEC Output: 6–12V adjustable, high current

Processor: 32-bit G4 (≈170MHz)

Cooling: Aluminum heatsink + temperature-controlled fan

Governor: Dedicated helicopter governor mode

Protection:

Over-current

Over-temperature

Low-voltage cutoff

Startup self-check

Motor stall protection

Application: 500–550 class RC helicopters / high-performance models

Why Choose the XDFly HPro 125A?

Extremely smooth throttle response

Strong BEC suitable for modern high-voltage cyclic servos

Reliable cooling for 3D and long-duration flights

Excellent price/performance ratio

Designed specifically for electric helicopters

Included in the Box

XDFly HPro 125A ESC

Cooling fan (installed)

Signal cable

User manual

Compatibility
Perfect for 500–550 class electric helicopters, including models from:SAB, XLPower, Tron, Align, Goosky (large class), and similar.

Ideal For

3D flying

Hard sport

Precision head-speed governor setups

Pilots looking for a reliable, highly configurable ESC