BLHeli Series 12A Brushless ESC - High-Performance Controller for Mini Quads

Specifications

• Continuous Current: 12A

• Burst Current (10s): 15A

• Input Voltage (LiPo): 2S to 4S (7v -14.8V)

• BEC Output: 5V,1A (Linear mode)

• Firmware: BLHeli Series

• Signal Cables: Standard three-wire servo connector (White: Signal, Red: 5V, Black: Ground)

• Motor Connection: Three pre-tinned black wires for brushless motor phases

Key Applications & Projects

• Mini Quadcopters: Ideal for 180mm to 250mm scale frames using 1306 to 2204 motors.

• DIY Robotics: Reliable brushless motor control for high-speed robotic fans or ground vehicles.

• Fixed-Wing Models: Perfect for small electric planes requiring a lightweight, high-response ESC.

Unlock New Capabilities (Project Evolution)

• Feature Upgrade: The BLHeli firmware allows for OneShot125 communication, providing a much faster link between your flight controller and motors compared to standard PWM signals.

• Effort Level: Intermediate. Requires basic soldering skills to connect the ESC to the power distribution board and motor.

Package Includes:

• 1 x BLHeli Series 12A Brushless ESC

• Pre-soldered Power Input Wires (Red/Black)

• Pre-soldered Motor Output Wires (Black)

• Standard Signal Input Cable

FREQUENTLY ASKED QUESTIONS (FAQ)

1. What is the maximum battery voltage it can handle? It is rated for up to a 4S LiPo battery (14.8V).

2. Does it have an integrated BEC? Yes, it includes a 5V,1A BEC to power your electronics.

3. Can I program the settings? Yes, it can be programmed via the signal wire using a BLHeli-compatible programmer or through flight controller passthrough.

4. Will this work with 2212 motors? No, 2212 motors typically require a 20A–30A ESC; 12A is for smaller mini-quad motors.

5. What does "four-axis standard" mean? It indicates the ESC is designed for multicopters like quadcopters that require four matching motor controllers.

6. Is it waterproof? No, it is enclosed in heat-shrink tubing and should be protected from water.

7. What firmware does it use? It uses the specialized BLHeli firmware optimized for multicopters.

8. Does it support OneShot? Yes, BLHeli ESCs typically support OneShot125 for faster response.

9. How do I reverse the motor direction? You can either swap any two of the three motor wires or change the setting in the BLHeli software.

10. What is the BEC current limit? The BEC provides up to $1\text{A}$, suitable for a flight controller and a small receiver.

11. Are the wires pre-tinned? Yes, the input and motor wires come pre-tinned for easier soldering.

12. Can I use this for a 3S setup? Yes, it is fully compatible with 2S, 3S, and 4S batteries.

13. Is it suitable for FPV racing? Yes, its high-speed firmware and lightweight design are ideal for racing.

14. What size motors are best for a 12A ESC? It works best with 1306, 1806, and some 2204 brushless motors.

15. What color are the signal wires? The cable has White (Signal), Red ($5\text{V}$), and Black (Ground) wires.

16. How do I mount it? It is usually secured to the drone arms using zip ties or double-sided tape.

17. Does it have overheat protection? Yes, BLHeli firmware includes thermal protection features.

18. Is this a "Linear" or "Switching" BEC? This model typically uses a linear BEC.

19. What weight is this ESC? It is approximately $12\text{ grams}$.

20. Can I use it on a helicopter? Yes, provided the current requirements of the brushless motor are under 12A.