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Technical Specifications
Last Updated: 2026-10-25
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | CYS-BLS5815 |
| Category | Hobby |
| Performance | |
| Torque |
7.4V
208.31 oz-in
15.00 kg-cm
1.5 N-m
6.0V
180.54 oz-in
13.00 kg-cm
1.3 N-m
Average
|
| Speed |
7.4V
0.07 sec/60°
857.1 deg/s
142.9 RPM
6.0V
0.08 sec/60°
750.0 deg/s
125.0 RPM
Above Average
|
| Running Current |
7.4V
0.100 A
100 mA
6.0V
0.080 A
80 mA
Top 10%
|
| Stall Current | 3–3.5 A3000–3500 mAAverage |
| Physical | |
| Weight | 2.93 oz83.0 gBottom 10% |
| Dimensions |
L 1.575 in W 0.787 in H 1.549 in L 40.0 mm W 20.0 mm H 39.3 mm |
| Drivetrain | |
| Motor Type | Brushless |
| Gears | Titanium |
| Gear Spline/Teeth | 25 T |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Direction | Counterclockwise |
| Rotational Range | 90° |
| Pulse Width | 1000-2000 µs |
| Neutral Position | 1500 µs |
| Dead Band | 2 µs |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 6–7.4 V |
| Temperature | -10–50 °C14–122 °F |
| Idle Current | 0.020 A20 mA |
| Connectivity | |
| Connector | JR (Universal) estimate |
| Wire Length | 300 mm11.81 in |
| Origin | |
| Country of Origin | China |
Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.
Class Comparison
| Torque | Average Stronger than 41% of 1060 Digital Standard servos at 6.0V |
| Speed | Above Average Faster than 89% of 1045 Digital Standard servos at 6.0V |
| Weight | Bottom 10% Lighter than 7% of 1880 Digital Standard servos |
| Running Current | Top 10% Lower draw than 97% of 226 Digital Standard servos at 6.0V |
| Stall Current | Average Lower draw than 46% of 570 Digital Standard servos |
Performance Analysis
| Shaft Power | 4.17–5.50 W |
| Power Density | 2.866 W/in³ More power-dense than 58% of 1768 Digital Standard servos |
| Torque Density | 2.1752 oz-in/g Stronger than 26% of 1053 Digital Standard servos |
| Torque-to-Volume Ratio | 94.03 oz-in/in³ Denser torque than 40% of 1058 Digital Standard servos |
| Speed-to-Weight | 0.15060 (1/sec·g) Faster than 73% of 1038 Digital Standard servos |
| Speed-Torque Trade-off | 14.44 Better balanced than 23% of 1034 Digital Standard servos |
| Current-per-Torque Ratio | 0.0194 A/oz-in More efficient than 32% of 331 Digital Standard servos |
| Idle-to-Running Current Ratio | 0.250 Lower idle draw than 11% of 167 Digital Standard servos |
| No-Load vs Stall Current Spread | 43.75 Narrower current spread than 17% of 179 Digital Standard servos |
| Torque Gain per Volt | 10.99%/V More voltage-responsive (torque) than 22% of 873 Digital Standard servos |
| Speed Gain per Volt | 10.20%/V More voltage-responsive (speed) than 17% of 874 Digital Standard servos |
| Voltage Range Width | 1.4 V Wider voltage range than 34% of 1560 Digital Standard servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0020 Finer dead band than 32% of 504 Digital Standard servos |
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