Spedix ES25 25A 2-4S BLHELI_S ESC
£10.99 Inc. VAT
The Ultimate Budget ESC without comprimising on quality or features.
In stock
The Ultimate Budget ESC without comprimising on quality or features.
Spedix ES25 speed controller is designed for 150-280 size racing multirotors. The product is powered by high performance EFM8BB21 MCU, and flashed with the latest BLHeli_S program. With the combination of dedicated drive chip, this speed controller has excellent response speed and efficiency. The filter circuit of ES25 is composed of 12 low ESR capacitors, a number much more than competitors that use only 4-5 of them. As a result, ES25 has less current ripples and higher system stability, and less interference to wireless video transmitters.
In additional to excellent design, ES25 is also made of top quality electronic parts. It is composed of 3 Oz gold plated PDB, and genuine components from estimated suppliers such as STMicroelectronics of Switzerland, TDK of Japan, and AVX of USA.
The Spedix uses the BusyBee2 MCU technically labeled EFM8BB21. This is the better of the two MCU’s. Hardware across BlHeli_S ESCs tends to be very similar, if not the same. Spedix is using some quality parts though including 3oz gold plated PDB. The 25A version boast 12 low ESR capacitors that suppress the current ripples. They even say that this provides less interference on the video system of a miniquad.
Excellent design, authentic electronic components, and good manufacturer process all together make the ESC an excellent product with great quality, reliability, and stability. Furthermore, the size of the product is managed to be as small as most compact products in the market.
- Continuous Current: 25A
- Burst Current: 35A
- Voltage Range: 2-4S LiPo
- Weight: 5.9g
- Dimensions: 12.8X25.8X5mm
- MCU: EFM8BB21 with dedicated driver
- Firmware: BLHeLi_S
- Supported protocols : Oneshot125 & 42, Multishot , DSHOT 150, 300 & 600
Included
- 1x ES25 BLHeLi_S 25A ESC
Questions and answers of the customers
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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.
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.
Please fill in the fields below with the shipping destination details in order to calculate the shipping cost.
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.

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