SKU: 57262473254

25A Brushless ESC BLHeli_S Firmware Speed controller for Multicopters Drones MT25A-OPTO-BK1/BK2

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Ships within 48 hours · Estimated delivery Oct 29 - Nov 3

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Description

25A Brushless ESC BLHeli_S Firmware Speed controller for Multicopters Drones MT25A-OPTO-BK1/BK2BLHeli_S firmware is the next generation code, following the base BLHeli code. BLHeli_S is designed for superior performance in multirotors, and uses hardware generated motor pwm for smooth throttle response and silent operation. All codes use damped light mode. Main features: Hardware PWM smoother and more responsive motor response; Always use damped light (Regenerative Breaking) for better multicopter control; Code supports sync loss prevention

BLHeli_S firmware is the next generation code, following the base BLHeli code.  BLHeli_S is designed for superior performance in multirotors, and uses hardware generated motor pwm for smooth throttle response and silent operation. All codes use damped light mode.

Main features:

  1. Hardware PWM – smoother and more responsive motor response;
  2. Always use damped light (Regenerative Breaking) for better multicopter control;
  3. Code supports sync loss prevention – tuneable parameters to make your ESC work well in the most demanding applications (not just FPV racing);
  4. High resolution throttle steps;
  5. Supports Oneshot125 (125-250us), Oneshot42 (41.7-83.3us), Multishot (5-25us) protocols;
  6. Automatically detects input signal protocol on ESC power up;
  7. Beacon Function – your ESC will start beeping after a set time of zero throttle to help you find your quadcopter.

Specifications:

Model NO.:  MT25A-OPTO-BK1 with BB1 MCU

Firmware.........................................   BLHeli_S firmware

Cont.Current ...................................  20A

Burst Current ................................... 25 A

BEC..................................................  None

Lipo...................................................  2-4 cells 

Net Weight ........................................ 8g

Size....................................................  27*12mm

Model NO.:  MT25A-OPTO-BK2 with BB2 MCU

Firmware.........................................   BLHeli_S firmware

Cont.Current ...................................  20A

Burst Current ................................... 25 A

BEC..................................................  None

Lipo...................................................  2-6cells

Net Weight ........................................ 13g

Size....................................................  33*20mm

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 57262473254

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JeffTryHard
Port Orchard, US
★★★★★ 5
Almost blew up my microwave
Size: 20 Ounces, Size: 20 Ounces
TL;DR "A hilarious microwave mistake turned into a great home cafe upgrade. This 20oz cup is straightforward to handle, looks incredibly professional, and holds a level of heat that will literally burn you if you aren't careful." . Bought this for homemade coffee brewing, just to spice things up. But as I go ahead to heat up my new shiny stainless steel milk frother cup in the microwave, whoopdy doo. Ya can’t put stainless in the microwave! Regardless, it’s still a straightforward frother cup to handle, making it a great dollar investment for upgrading my home cafe setup. . 1. Spotless Stainless Steel: Its sleek appearance made me feel professional in the hands of an amateur like moi. Great quality! 2. Temperature Retention: I accidentally burnt myself because it stayed so hot, but that is a major positive. Proving the insulation works perfectly and keeps the milk piping hot. 3. Size: The 20oz capacity is accurate, providing the perfect amount of space for frothing without any overflow.
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Reviewed in the United States on June 6, 2026
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Kayla
Lake Worth, US
★★★★★ 5
Sturdy
Size: 20 Ounces
Great pitcher
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Reviewed in the United States on January 20, 2026
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Q Nguyen
Houston, US
★★★★★ 4
Decent pitcher
Size: 11.8 Ounces
Smaller than expected. I frothed 5 oz of milk and it was almost a mess.
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Reviewed in the United States on October 16, 2025
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Vasilios Anastasiadis
Pawtucket, US
★★★★★ 5
Love
Size: 11.8 Ounces
Perfect size for making my Fredo cappuccino every morning. Throw it in the dishwasher look brand new everytime
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Reviewed in the United States on December 18, 2025
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Malcolm McLane
Louisville, US
★★★★★ 5
Very nice product. Made of high quality.
Size: 20 Ounces
Product is just what i ordered. Recommend to anyone to purchase from this vendor.
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Reviewed in the United States on November 12, 2025

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