EMAX BL Heli 40A ESC in Pakistan

The EMAX BLHeli 40A ESC is a high-performance brushless speed controller designed for multirotors and RC drones. It supports 2S–6S LiPo batteries and comes pre-flashed with BLHeli firmware, enabling ultra-smooth throttle response, programmable features, and rapid motor sync. Ideal for medium to heavy-lift drones, racing quadcopters, and DIY UAV builds.

EMAX BLHeli 40A ESC

Take your drone’s flight performance to the next level with the EMAX BLHeli 40A ESC, a professional-grade speed controller engineered for precision, durability, and top-tier responsiveness. Whether you’re building an FPV racing drone, a DJI F450/F550-based multirotor, or a DIY robotics UAV, this ESC delivers clean power and robust control to your brushless motors.

Supporting 2S to 6S LiPo input, this 40A electronic speed controller is equipped with BLHeli firmware, allowing customizable throttle curves, braking, motor direction, and timing for a perfectly tuned flight experience. Its compact and lightweight form factor makes it ideal for tight builds, while the high-efficiency MOSFETs and optimized PCB layout ensure minimal heat buildup and maximum current delivery.

Perfectly compatible with Drones and Brushless DC Motors, this ESC integrates seamlessly into Arduino-based, Pixhawk, APM, or Raspberry Pi drone control systems.

✅ Technical Features:

Input Voltage: 2S–6S LiPo (7.4V–22.2V)
Continuous Current: 40A
Burst Current: 50A (10 seconds)
Firmware: BLHeli preloaded
BEC: No (Opto-type, requires separate BEC if needed)
Throttle Signal: PWM with fast refresh rate
Motor Support: 2204–2216 brushless motors (e.g., A2212 1000KV)
Weight: Approx. 24g
Dimensions: Ultra-slim design for easy stacking

🛠️ Applications:

✅ FPV Quadcopter Racing
✅ Medium Lift Multirotors (F450, F550)
✅ UAV & Drone Prototyping
✅ Custom Arduino Flight Controllers
✅ Raspberry Pi-based Aerial Platforms
✅ Robotic & IoT Drone Systems

⚠️ Precautions & Setup Tips:

🔌 Always double-check LiPo voltage rating before connecting
⚙️ Calibrate throttle range during initial setup via transmitter or flight controller
🧊 Ensure proper cooling and spacing to avoid overheating
🔧 Use quality solder and insulation to prevent short circuits
📘 Update or modify firmware only if you’re experienced with BLHeli Suite

📺 YouTube Tutorial:

🎥 BLHeli ESC Setup Guide & Troubleshooting

🏪 Shop Address:

Electroway Electronics, Johar Town (Near UMT), Lahore, Pakistan
🚚 We deliver across Pakistan – including Islamabad, Karachi, Peshawar, Multan & All Over the Pakistan.