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Holybro BLHeli S ESC 20A 2-4S Speed Controller for QAV250

Name: Holybro BLHeli S ESC 20A 2-4S Speed Controller for QAV250 - Flying Tech
Brand: Holybro
SKU: ESC-HB-20A520041
Price: 14.50 GBP
Availability: InStock

£14.50 Inc. VAT

This ESC is a spare part for the Holybro QAV250 quadcopter kit. It comes pre-soldered with 2mm bullet connectors attached.

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SKU: ESC-HB-20A520041 Categories: Single ESCs, Electronics, Speed Controllers (ESCs), Spare Parts, Holybro Tags: BlHeli-S, ESC, QAV250 Spare Part, Speed Controller

Description

A BLHeli S 20A ESC designed for use with Holybro’s 2207 KV1950 V2 Motor / QAV250 Quadcopter.

It comes pre-soldered with power wires and 2mm bullet connectors attacehd for a quick and easy installation.

Main features

● EFM8BB21F16G MCU, pipelined 8-bit C8051 core with 50 MHz maximum operating frequency.
● Dedicated high frequency driver, makes the start more smooth. ESC maximum speed is 500k eRPM.
● BLHeli-S firmware is designed for superior performance in multirotors, and uses hardware generated motor pwm for smooth throttle response and silent operation.
● Damped light does regenerative braking, causing very fast motor retardation, and inherently also does active freewheeling.
● Supports higher KV motor and more power load.
● The code supports regular 1-2ms pulse width PWM input, as well as Oneshot and Multshot . The input signal is automatically detected by the ESC upon power up.
● Supports Dshot150, Dshot300 and Dshot600. Dshot is digital signal, anti-interference ability is stronger and do not need throttle calibration.
● The silicone twisted-pair of the throttle signal cable reduces the crosstalk caused by signal transmission and makes flight more stable.

Specification

Con. Current: 20A
Burst Current(10S): 30A
BEC: NO
LiPo cells: 2-4S

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.

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 “Cinelifters”.

When using individual ESCs, they typically need to be connected to a single power distribution board (PDB) or an “AIO flight controller” (a type of flight controller with integrated PDB) for power supply.

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Shipping

SHIPPING & DELIVERY

We are based in the UK, but ship to most worldwide destinations. Postage rates are calculated by the size/weight 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.

We are partnered with several delivery companies including Royal Mail, DHL, UPS and Parcel Force. If you have a special delivery requirement or would like to arrange a shop collection please contact us.

A confirmation email will be sent when your order has been dispatched. If you wish to change your order, please contact us promptly, as we won't be able to make amendments once the order has been shipped.

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Shipping to the UK

Order before 4PM for same day dispatch with Royal Mail, 2PM for next day delivery with DHL and 1PM for next day delivery with APC.
We offer FREE Shipping on UK orders over £99, weighing less than 1kg.
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. For a guaranteed next day delivery we recommend Royal Mail Special Delivery or one of our courier delivery options.

International Postage

Order before 4PM for same day dispatch with Royal Mail.
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DHL Express offers NEXT DAY delivery to most European destinations and a very fast delivery for countries further afield, generally 2-3 days.

Orders shipped outside the EU may be subject to customs charges. These charges are additional to any delivery costs and will need to be paid by the recipient.

Holybro BLHeli S ESC 20A 2-4S Speed Controller for QAV250

Questions and answers of the customers