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

£7.90 Inc. VAT

These affordable ESCs are perfect for those building their first racing drone.

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Description

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 โ€“ high 500Hz maximum refresh rateย compatible with all flight controllers
  • Twisted signal cable reducing the crosstalk during signal transfer
Specification
  • Continuous current:ย 20A
  • Peak Current(10s): 25A
  • BEC: NO
  • LiPo: 2-4S
  • Firmware:ย Blheli_S
  • Programming: Supported
  • Weight: 7.9g
  • Size: 27x12mm

Included:

  • 1xย 20A 2-4S Mini BLHeli-S ESC
Q&A

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Advice

Here at Flying Tech we have a wide choice of electronic speed controllers (ESCs).

There are two main types of ESCs: 4-in-1 ESCs and single ESCs. A 4-in-1 ESC integrates four individual ESCs onto a single circuit board, each controlling a separate motor. A single ESC controls only one motor.ย 

This 4-in-1 ESC is a more popular choice for racing quads, while single motor aircraft such as fixed wings would use a single ESC. Single ESCs are still used by some drone racers though, as after a crash or a burnt up ESC, they only have to replace one, not an entire 4-in-1 or stack which is a lot more costly. Single ESCs are also available which much greater current ratings (80amp +) so they are also used by power hungry multi-rotors, for example X-Class racing quads, professional camera flying โ€œCineliftersโ€.ย 

When using individual ESCs, they typically need to be connected to a single power distribution board (PDB) or an โ€œAIO flight controllerโ€ (a type of flight controller with integrated PDB) for power supply.

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We are based in the UK, but ship to most worldwide destinations. Postage rates are calculated by the size/weightย and shipment location. We process orders Monday to Friday and pride ourselves on our quick turnaround of orders - most UK orders will arrive the next day.

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  • The courier options deliver Monday to Friday, Royal Mail delivers to residential addresses on Monday to Saturday.

For small low value orders our cheapest delivery service is Royal Mail First Class.ย For a guaranteed next day delivery we recommendย Royal Mail Special Delivery orย one of our courier delivery options.

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