Description
MAXKGO 3115 900KV Brushless Motor
The MAXKGO 3115 900KV Brushless Motor is designed for RC aircraft, drones, model boats, small electric vehicles, and other electric-powered applications. Supporting 3–6S LiPo batteries, it delivers powerful and responsive performance with a maximum current of 68.78A and a maximum power output of 1650W.
Featuring a 12N14P configuration and precision rotor dynamic balancing, the 3115 motor is engineered for smooth, linear power delivery and reduced vibration. Its high-efficiency copper windings help minimize energy loss and improve overall operating efficiency.
With a tested maximum thrust of approximately 3970g, the MAXKGO 3115 900KV is a versatile choice for demanding RC and UAV applications.
Key Features
1. Smooth and Linear Power Output
Designed to provide strong torque at low RPM, supporting responsive power delivery and smooth operation across different throttle levels.
2. Precision Dynamic Balancing
The rotor undergoes dynamic balancing testing with a tolerance of ≤5mg. Its optimized vibration-reduction design helps minimize motor vibration and reduce stress on the bearings, contributing to improved bearing service life.
3. High-Efficiency Copper Windings
Features high-efficiency copper windings with a conversion efficiency of over 90% according to the product specifications. The design helps reduce energy loss and improve operating efficiency.
4. High Power and Thrust Performance
With a maximum power output of 1650W and a tested maximum thrust of approximately 3970g, this motor provides strong performance for demanding RC applications.
5. Cost-Effective Performance
Offers a balance of power, performance, and value for various RC and electric-powered applications.
Technical Specifications
| Parameter |
Specification |
| Model |
3115 |
| KV Rating |
900KV |
| Stator Configuration |
12N14P |
| Battery Voltage |
3–6S LiPo |
| Maximum Current |
68.78A |
| Maximum Power |
1650W |
| No-load Current |
2.7A ±20% |
| Phase-to-phase Resistance |
45mΩ ±10% |
| Maximum Tested Thrust |
3970g |
| Motor Outer Diameter |
37.2 ±0.1mm |
| Mounting Hole Position Diameter |
19 ±0.05mm |
| Mounting Holes |
4 × M3 |
| Wire Specification |
16AWG Soft Silicone Wire |
| Wire Length |
300mm |
| Motor Weight (Including Wires) |
110g |
| Rotor Dynamic Balancing |
≤5mg |
| Operating Temperature |
-20°C to 60°C |
Thrust Test Data
Test configuration: 6S LiPo battery with GEMFAN 1050-3 propeller.
| Throttle |
Current (A) |
Input Power (W) |
Thrust (g) |
Efficiency (g/W) |
Speed (RPM) |
| 10% |
0.31 |
7.44 |
23.09 |
3.10 |
2,214 |
| 20% |
1.34 |
32.16 |
217 |
6.75 |
4,014 |
| 30% |
3.66 |
87.84 |
548.55 |
6.24 |
5,871 |
| 40% |
7.50 |
180 |
987.45 |
5.49 |
7,414 |
| 50% |
13.12 |
314.88 |
1,512.73 |
4.80 |
8,971 |
| 60% |
20.51 |
492.24 |
2,050.73 |
4.17 |
10,329 |
| 70% |
30.63 |
735.12 |
2,573.27 |
3.50 |
11,371 |
| 80% |
40.17 |
964.08 |
3,119.36 |
3.24 |
12,386 |
| 90% |
53.88 |
1,293.12 |
3,547.64 |
2.74 |
13,185 |
| 100% |
68.78 |
1,650.72 |
3,970.36 |
2.41 |
13,871 |
Test Note: Motor internal temperature was measured after running at 100% throttle for 2 minutes. Test results are for reference only. Actual performance and temperature may vary depending on the battery, propeller, ESC, cooling conditions, and operating environment.
Recommended Applications
Package Contents
Single Motor Package
4-Motor Package
Installation Notes
-
Use screws of the appropriate length to secure the motor.
-
Do not use screws that are too long, as they may reach the motor windings and cause a short circuit.
-
Check the mounting dimensions and screw compatibility before installation.
-
Ensure that the battery voltage and ESC specifications are compatible with the motor's 3–6S operating range.
Important: The maximum thrust value is based on the specified 6S test configuration with a GEMFAN 1050-3 propeller. Actual results may vary with different propellers, batteries, ESCs, and installation conditions.
