SpeedyBee 55A 3-6S BLS 4in1 ESC - 30x30mm

Regular price $39.99 Sale

Availability: Available Unavailable

Product SKU: 59E-12293

Product Details

A powerful 55A 4-in-1 ESC, built with aluminum alloy heat sink + TVS protective diode + Japan made TDK SMT capacitors + external 1000uF low ESR capacitor, everything is for durable build and smooth flight.

We also carry the F405 V4 FC and the F405 V4 Stack individually!

Check out all our 30x30mm ESCs and the rest of our SpeedyBee Products!


ESC upgraded to 55A with heat sink.
The PCB design has been refined, with copper thickness increased from 2 to 3 ounces and enhanced MOSFET specifications. Continuous current now reaches 220A across all channels, peaking at 280A for 10 seconds. An added aluminum alloy heat sink ensures efficient MOSFET heat dissipation for stable ESC output. It delivers a genuine 55A output, primed for your baddest high-powered 6S motors.
ICM42688P Gyro and clean
power supply.
Featuring MaxLinear's esteemed LDO power chip, the gyroscope gets dedicated power, enhancing surge protection by 320%. A 100uF filtering tantalum capacitor shields gyro data from power interferences. This ensures precise flight responsiveness, letting you truly savor the joy of flying!

TVS Protective Diode + 21 Onboard TDK Capacitors + 1000uF High-Capacity Electrolytic Capacitor = Upgraded ESC Protection
We've included a TVS diode that effectively absorbs voltage spikes during power-up and crash events. The board features 21 high-quality Japanese TDK 35V 22uF SMD filtering and energy storage capacitors. These, along with the standard 1000uF high-frequency, low-ESR electrolytic capacitor, effectively filter out signal interference from the power supply to the flight controller's gyroscope, ensuring smoother flight performance.



Product Name SpeedyBee BLS 55A 30x30 4-in-1 ESC

  • Firmware BLHeli_S J-H-40
  • Wireless Configuration Full Configuration Supported in the SpeedyBee app
  • PC Configurator Download Link https://esc-configurator.com/
  • Continuous Current 55A * 4
  • Burst Current 70(10 seconds)
  • TVS Protective diode Yes
  • External Capacitor 1000uF Low ESR Capacitor(In the package)
  • ESC Protocol DSHOT300/600
  • Power Input 3-6S LiPo
  • Power Output VBAT
  • Current Sensor Support (Scale=400 Offset=0)
  • ESC Telemetry Not supported
  • Mounting 30.5 x 30.5mm( 4mm hole diameter)
  • Dimension 45.6(L) * 44(W) *8mm(H)
  • Weight 23.5g

Download the Manual Here

Package Includes: