DJI Agras T20
About the DJI Agras T20
DJI Agras T20 is a 20 L agricultural spraying aircraft. DJI current public specs list 21.1 kg without battery, 42.6 kg standard takeoff weight and 47.5 kg maximum takeoff weight at sea level; a separate DJI user manual v1.4 safety note states 45.5 kg, so verify the exact aircraft documentation. With an 18,000 mAh battery, DJI lists 15 minutes hovering at 27.5 kg or 10 minutes at 42.6 kg. Its RM500-AG OcuSync 2.0 controller link is rated up to 5 km FCC/NCC or 3 km SRRC/MIC/KCC/CE without obstruction or interference.
Technical Specifications
| Weight | 21.1 kg excluding battery |
| Standard Takeoff Weight | 42.6 kg |
| Max Takeoff Weight | 47.5 kg at sea level |
| Max Thrust-Weight Ratio | 1.70 at 47.5 kg takeoff weight |
| Hovering Accuracy | D-RTK enabled: horizontal plus/minus 10 cm, vertical plus/minus 10 cm; D-RTK disabled: horizontal plus/minus 0.6 m, vertical plus/minus 0.3 m |
| Spray Tank Volume | 20 L |
| App | DJI Agras |
| Data Source | DJI Agras T20 User Manual v1.4 (official) |
| Hovering Time | 15 min at 27.5 kg; 10 min at 42.6 kg with 18,000 mAh battery, DJI sea-level hover tests |
| Controller Link | RM500-AG, OcuSync 2.0; 5 km FCC/NCC or 3 km SRRC/MIC/KCC/CE, unobstructed and interference-free |
| Operating Temperature | Aircraft: 0°C to 40°C; remote controller separately: −10°C to 40°C |
| Official Manual Variation | DJI T20 user manual v1.4 safety text says not to exceed 45.5 kg near sea level; current DJI public specs list 47.5 kg. The two official sources are not reconciled here. |
| Official Public Sources | https://www.dji.com/t20/specs; https://dl.djicdn.com/downloads/t20/20201201/Agras_T20_User_Manual_v1.4_EN.pdf (checked 2026-10-16) |
Common Failure Modes
Symptoms: Cracked shell, bent arm, loose landing gear, abnormal vibration, or visible crash damage.
Likely areas: outer shell, arms, landing gear, motor mounts
Inspect the airframe before powering on and verify the exact replacement part against the model variant.
Symptoms: Motor start failure, rough spin, propulsion warning, overheating, or unstable hover.
Likely areas: motor, arm wiring, ESC board, power connectors
Check for impact damage, cable strain, and water exposure before replacing boards or motors.
Symptoms: Flow error, pump warning, uneven spray, nozzle blockage, or tank/payload warning.
Likely areas: pump, nozzle, flow sensor, tank, payload wiring
Clean fluid paths and confirm sealing before replacing electronics.
Symptoms: Positioning drift, obstacle sensing warning, compass or IMU calibration prompt, or unstable low-altitude hover.
Likely areas: vision sensors, IMU, GPS/GNSS board, sensor flex cables
Clean sensor windows and verify calibration after shell, sensor, or board replacement.
Repair Notes
Confirm the exact model, variant, error message, and visible damage before selecting parts. Do not substitute parts from a similar model without verification.
Remove the battery before opening the aircraft. Check for moisture, corrosion, and overheated connectors before reconnecting power.
Clean pumps, nozzles, hoses, and flow sensors before assuming an electronic failure.
After replacing gimbal, vision, GNSS, IMU, shell, arm, or propulsion parts, run the required calibration and perform a controlled low-altitude test.
DJI Agras T20 Parts Library
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