Introduction
The Surpass Hobby BAT 4214 FPV Outrunner Brushless Motor is engineered for high performance and efficiency in RC racing drones, including Mark4 Multirotor setups. Available in 400KV and 660KV variants, these motors are designed for demanding FPV applications, offering robust construction and reliable operation. This manual provides essential information for the safe and effective use of your motor.
Safety Information
- Always disconnect the battery before performing any maintenance or installation on the motor or drone.
- Ensure all wiring connections are secure and properly insulated to prevent short circuits.
- Keep fingers and loose clothing away from rotating propellers and motors during operation.
- Operate RC drones in open areas, away from people, animals, and obstacles.
- Brushless motors can generate significant heat; allow the motor to cool down before handling after use.
- Use only compatible Electronic Speed Controllers (ESCs) and propellers as recommended for your motor's KV rating.
Package Contents
Depending on the purchased variant (1, 2, or 4 motors), your package will include:
- 1, 2, or 4 x Surpass Hobby BAT 4214 FPV Outrunner Brushless Motor
- 4, 8, or 16 x M3*8 Mounting Screws
- 1, 2, or 4 x M5 Propeller Nuts
Specifications
The BAT 4214 motor features a robust design with high-quality components for optimal performance.
Basic Data
| Item No. | Max Watts | Voltage Range (V) | Max Current (A) | KV Value | No Load Current (A) | Resistance (Ω) | Rotor Poles | Motor Size (mm) | Stator Size (mm) | Weight (g) | Prop (inch) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| B4214 | 1665.0 | 22 | 79.06 | 400 | 0.9 | 0.057 | 14 | Ø50.4x60.5 | Ø42x14 | 260 | GF1270-3 |
| B4214 | 1665.0 | 22 | 79.06 | 660 | 1.5 | 0.028 | 14 | Ø50.4x60.5 | Ø42x14 | 260 | GF1308-3 |
B4214-400KV Thrust Test Data (Prop: GF1270-3)
| Throttle | RPM | Volts (V) | Amps (A) | Watts (W) | Torque (N.m) | Thrust (g) | Efficiency (g/W) | Operating Temperature (°C) |
|---|---|---|---|---|---|---|---|---|
| 50% | 7068 | 42.01 | 9.40 | 394.9 | 0.428 | 2135 | 5.4 | 28.1 |
| 70% | 9662 | 41.92 | 15.90 | 666.5 | 0.620 | 3112 | 4.7 | 29.6 |
| 80% | 10733 | 41.64 | 23.88 | 997.9 | 0.818 | 4121 | 4.1 | 31.0 |
| 90% | 11706 | 41.46 | 44.89 | 1861.1 | 1.239 | 6134 | 3.3 | 32.1 |
| 100% | 12734 | 41.23 | 60.10 | 2477.9 | 1.489 | 7314 | 3.0 | 34.5 |
B4214-660KV Thrust Test Data (Prop: GF1308-3)
| Throttle | RPM | Volts (V) | Amps (A) | Watts (W) | Torque (N.m) | Thrust (g) | Efficiency (g/W) | Operating Temperature (°C) |
|---|---|---|---|---|---|---|---|---|
| 50% | 6199 | 22.09 | 12.86 | 284.1 | 0.347 | 1750 | 6.2 | 27.4 |
| 60% | 7343 | 21.95 | 21.09 | 462.9 | 0.490 | 2512 | 5.4 | 28.0 |
| 70% | 8377 | 21.79 | 31.49 | 686.2 | 0.646 | 3265 | 4.8 | 28.6 |
| 80% | 9328 | 21.59 | 45.01 | 971.8 | 0.820 | 4044 | 4.2 | 29.5 |
| 90% | 10129 | 21.36 | 60.00 | 1281.6 | 0.990 | 4862 | 3.8 | 30.4 |
| 100% | 10908 | 21.06 | 79.06 | 1665.0 | 1.180 | 5740 | 3.4 | 31.7 |
General Attributes
- Material: Metal
- Wheelbase: Bottom Plate
- Tool Supplies: Assembly Category
- Four-wheel Drive Attributes: Assemblage
- Remote Control Peripherals/Devices: ESC
- Upgrade Parts/Accessories: Gear
- RC Parts & Accs: Motors
- For Vehicle Type: Airplanes (specifically FPV Racing Drones)
- Recommend Age: 14+y
- Certification: CE
Setup
Mounting the Motor
- Ensure your drone frame has compatible M4 mounting holes for the motor.
- Align the motor with the mounting holes on the drone arm.
- Secure the motor using the provided M3*8 screws. Do not overtighten to avoid damaging the motor or frame.
Propeller Installation
- Place the propeller onto the M6 threaded shaft of the motor. Ensure the propeller is oriented correctly for thrust direction.
- Place the washer over the propeller shaft.
- Thread the M5 propeller nut onto the shaft and tighten it firmly. The custom nuts are designed to protect the steel shaft threads.
Electrical Connection
- Connect the three motor wires to your Electronic Speed Controller (ESC). The order of connection determines the motor's rotation direction.
- If the motor spins in the wrong direction, swap any two of the three motor wires connected to the ESC.
- Ensure all connections are soldered securely and insulated with heat shrink tubing to prevent short circuits and ensure reliable operation.
Operating Instructions
Once the motor is correctly installed and connected to a compatible ESC and flight controller, follow your drone's specific operating procedures. The BAT 4214 motors are designed for high-performance FPV racing. Refer to the thrust test data in the Specifications section to understand the expected performance with recommended propellers (GF1270-3 for 400KV, GF1308-3 for 660KV).
- 400KV Motors: Generally suited for larger propellers and setups requiring more torque and longer flight times, often with higher voltage batteries.
- 660KV Motors: Typically used with smaller propellers for higher RPMs and faster, more agile flight characteristics, often with lower voltage batteries.
Always perform a pre-flight check to ensure all components are secure and functioning correctly.
Maintenance
Regular maintenance will ensure the longevity and optimal performance of your Surpass Hobby BAT 4214 motor.
- Cleaning: The motor features a detachable design and porous air outlets for easy cleaning and improved heat dissipation. Periodically remove any dirt, dust, or debris from the motor's exterior and internal components.
- Bearing Inspection: The motor uses high-precision, wear-resistant bearings. Inspect them regularly for smooth operation. If you notice any grinding or excessive play, consider replacing the bearings.
- Wiring Check: Regularly inspect motor wires for any signs of wear, fraying, or damage. Ensure all solder joints remain strong.
- Propeller Balance: Unbalanced propellers can cause excessive vibration, leading to premature motor wear. Ensure your propellers are balanced.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Motor not spinning or stuttering | Loose wire connection, ESC not calibrated, damaged motor/ESC | Check all wiring connections. Recalibrate ESC. Inspect motor for physical damage. Test with a known good ESC/motor if possible. |
| Motor spinning in wrong direction | Incorrect motor wire connection to ESC | Swap any two of the three motor wires connected to the ESC. |
| Motor overheating | Over-propped, incorrect timing settings on ESC, insufficient airflow, damaged bearings | Use recommended propeller size. Adjust ESC timing. Ensure adequate airflow for cooling. Check bearings for smooth operation. |
| Reduced power or efficiency | Damaged windings, worn bearings, incorrect propeller, weak battery | Inspect motor windings. Check bearings. Ensure correct and balanced propeller. Test battery health. |
User Tips
- Optimal Performance: The BAT 4214 motors utilize high-precision bearings and high-temperature resistant 220°C multi-strand copper wire for stable performance and extended lifespan.
- Efficient Design: Featuring 0.2mm silicon steel sheets, these motors offer high-grade performance with low heat generation and high efficiency.
- Durability: The 48SH Rotor NDFEB Tiles and lightweight, high-strength hollow core steel shaft contribute to the motor's overall durability and responsiveness.
- Propeller Selection: Always choose propellers that match your motor's KV rating and your drone's intended use. Refer to the thrust data for guidance.
Warranty and Support
For any product problems or technical assistance, please contact the seller, NeebRC Official Store, directly. When reporting an issue, it is helpful to provide product pictures or videos to facilitate quicker diagnosis and resolution.
Please retain your proof of purchase for warranty claims.