T-Motor F55A Pro II 55A 6s AM32 4-in-1 ESC w/ BEC
Features:
- 55A continuous current rating with 75A burst for peak power demands
- Supports 3S to 6S LiPo battery input for versatile build compatibility
- 32-bit processing with AM32 open-source firmware for fast response and easy tuning
- Upgraded heatsink design for superior heat dissipation during extended flights
- Onboard BEC output: 10V @ 2A — powers FC, VTX, and camera reliably
- Onboard LED indicator for status monitoring and diagnostics
- 4-in-1 layout reduces wiring complexity and overall drone weight
- Compatible with all major flight controllers and ESC configurators (AM32 Configurator)
- Supports DSHOT300, DSHOT600, and bidirectional DSHOT protocols
- Designed for 5-inch racing and freestyle FPV quad builds
Technical Specifications:
- ESC Type: 4-in-1 Brushless ESC
- Continuous Current: 55A (per channel)
- Burst Current: 75A
- Input Voltage: 3S–6S LiPo (11.1V–22.2V)
- BEC Output: 10V @ 2A
- Firmware: AM32 (32-bit)
- Mounting Pattern: 30.5×30.5mm
- Connector: XT60 (power input)
- LED: Yes (onboard status LED)
- Protocols Supported: DSHOT300, DSHOT600, Bidirectional DSHOT
- Weight: ~32g
Additional Details:
- Manufacturer: T-Motor (T-MOTORHOBBY)
- Brand: T-Motor
- Series: F Series Racing Power
- Generic Name: 4-in-1 ESC || FPV Racing ESC || Brushless Speed Controller || BLHeli32 ESC || AM32 ESC || FPV Drone ESC || 6S ESC
- Sold By: UAV Marketplace (an authorized seller of drone gear and accessories)
- Ideal For: 5-inch FPV Racing Quads, 5-inch Freestyle Builds, 6-inch Long Range FPV Builds, Competitive FPV Racing, High-performance freestyle drones requiring clean 6S power delivery
Package Details:
- Includes: 1 × T-Motor F55A Pro II 55A 3-6S AM32 4-in-1 ESC with BEC
Frequently Asked Questions:
Q1. What is the difference between the F55A Pro II and the original F55A?
The Pro II features a redesigned heatsink for better cooling, onboard LED indicators, and an upgraded BEC output of 10V@2A compared to the original — making it more thermally stable and better suited for DJI O3 or Walksnail camera systems that need higher BEC voltage.
Q2. Is this ESC compatible with Betaflight?
Yes. The F55A Pro II runs AM32 firmware which is fully compatible with Betaflight via DSHOT protocols. It can be configured using the AM32 Configurator tool for motor timing, demag strength, and other ESC-level tuning.
Q3. Can I use this ESC with 4S batteries for a standard 5-inch build?
Absolutely. The F55A Pro II supports 3S–6S input, making it equally capable on 4S and 6S setups. Its 55A continuous rating provides significant headroom even for high-KV motors on 4S.
