ELECTRONIC SPEED CONTROLLERS
ESCs for FPV multirotors, from 10-inch builds to large, high-speed aircraft. The range includes 60, 80, and 100 A models supporting batteries up to 8S.
WHAT TO CONSIDER WHEN CHOOSING AN ESC
An ESC converts battery power into controlled power for the motor and follows commands from the flight controller. Compatibility depends on its electrical specifications, design, and firmware.
A single ESC controls one motor, while a 4-in-1 ESC combines four motor channels on one board. A 4-in-1 design saves space, but its dimensions, mounting pattern, and board-to-board connection must match the rest of the electronics.
Voltage and current ratings
Check the ESC’s supported voltage against the battery’s maximum voltage, not just its nominal voltage. Continuous current and short-term peak current are different specifications. For a 4-in-1 board, also check whether the rating is per channel and what cooling conditions it assumes.
Protocol and telemetry
DShot is a digital communication protocol between the FC and ESC. Support for bidirectional DShot and telemetry depends on the ESC’s hardware and firmware. RPM, current, voltage, and temperature data may come from different sources; support for one type of telemetry does not imply support for all the others.
When replacing an ESC, check the documentation for its hardware revision, FC compatibility, and the supplied cable. The terms 8-bit and 32-bit describe the control platform; they do not, by themselves, determine the current rating or the quality of the power stage. Compare the model’s full specifications.
FAQ
It usually refers to the stated current rating, but its exact meaning should be checked against the specifications. For a 4-in-1 ESC, it is often specified per channel. Continuous current, peak current, and the board’s total allowable current are not interchangeable.
A 4-in-1 board has four motor-control channels; a single ESC has one. The choice depends on the aircraft’s layout, mounting arrangement, and ease of maintenance. The connection to the flight controller and access to individual channels during repairs also differ.
Not necessarily. Returning RPM data requires bidirectional DShot support from the ESC, its firmware, and the FC. Support for standard DShot commands alone does not guarantee this. Check the available telemetry data separately.
No. Processor bit depth is not a current rating. The allowable load depends on the power components, board design, and thermal conditions. Compare the operating voltage, continuous and peak current ratings, and supported firmware of the specific model.
Only after compatibility has been confirmed in the documentation for both boards. The pin count and connector shape do not guarantee the same wiring assignments. If no confirmed wiring diagram is available, ask the manufacturer or technical support to verify compatibility.