Racing Drone 20A 2-4S Mini BLHeli-S OPTO ESC

These affordable ESCs are perfect for those building their first racing drone. It is rated at 20amps, supports 2-4S LiPo batteries, weighs just 7.9g and measures a tiny 27x12mm, meaning it can be installed with room to spare on a 250 FPV racing quad. They also follow the latest trend of having solder pads rather than pre-attached wires, which makes the soldering much easier.

With these ESCs you can take advantage of the BLHeli_S. They come with BLHeliS firmware pre-flashed and support DShot300 or DShot600. The ESCs utilise a high-performance Silabs EFM8BB21 50MHz microprocessor for smooth response and high-resolution throttle steps, making them ideal for racing drones. Firmware can be upgraded via the signal wire using a USB flash tool. Finally, the ESC is of the OPTO type (no BEC), which helps to eliminate radio interference between the motor and receiver.

Features:

• Tiny form factor and low weight
• Specially designed for multicopters, super fast throttle response
• Powered by high performance EFM8BB21 MCU
• BLHeli-S firmware/ Supports DSHOT, MULTISHOT, ONESHOT42, ONESHOT125
• Supports Dshot 150,300 and 600
• Fast throttle response – high 500Hz maximum refresh rate compatible with all flight controllers
• Twisted signal cable reducing the crosstalk during signal transfer