G12-M4 TETHERED POWER STATION – Long Endurance Power System for DJI DronesG12-M4 TETHERED POWER STATION – Long Endurance Power System for DJI Drones
G12-M4 TETHERED POWER STATION – Long Endurance Power System for DJI DronesG12-M4 TETHERED POWER STATION – Long Endurance Power System for DJI Drones
G12-M4 TETHERED POWER STATION – Long Endurance Power System for DJI DronesG12-M4 TETHERED POWER STATION – Long Endurance Power System for DJI Drones
G12-M4 TETHERED POWER STATION – Long Endurance Power System for DJI DronesG12-M4 TETHERED POWER STATION – Long Endurance Power System for DJI Drones
G12-M4 TETHERED POWER STATION – Long Endurance Power System for DJI DronesG12-M4 TETHERED POWER STATION – Long Endurance Power System for DJI Drones
G12-M4 TETHERED POWER STATION – Long Endurance Power System for DJI DronesG12-M4 TETHERED POWER STATION – Long Endurance Power System for DJI Drones
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UAVMODEL

G12-M4 TETHERED POWER STATION

$4,800.00

Last 90 Days Sales： PCS

FYTSG12M4-33
TYPE: G12-M4-33m

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Tag : Automatic Cable Retraction , DJI Matrice 4E/4T , Drone Power System , G12-M4 Tethered Power Station , High Voltage Drone Power , Long Endurance Drone Power , Reliable Drone Power Supply , tethered drone system , tethered drones , TETHERED POWER STATION , Tethered UAV Power Solution , tethered UAV system
TYPE: G12-M4-33m

G12-M4 Tethered Power Station – Product Details

Ultra‑Long Flight Time

≥24h continuous power


Lightweight & Portable

Carrying case, one‑person transport


Rapid Deployment

Tool‑free quick mount, plug‑and‑play


Safe & Reliable

Contact‑free operation · multi‑protection

G12-M4 Tethered Power Station is designed for DJI Matrice 4T and Matrice 4E drones, providing over 24 hours of safe and reliable long‑endurance flight power. The L6 floodlight is optionally available to deliver wide‑area, high‑illuminance outdoor lighting.

The system mainly consists of the tether box (ground module), onboard power supply (air module), and the optional L6 floodlight. The tether box integrates AC/DC conversion, tether cable, automatic winding mechanism, servo motor, communication module, cooling system, and control management. It converts AC power from mains, generators, or mobile power sources into high‑voltage DC, transmitted through the tether cable to the onboard power supply, which then converts it to low‑voltage DC to power the drone and payloads such as the floodlight, enabling uninterrupted flight of 24 hours or more.

By mounting gimbal cameras, floodlights, searchlights, loudspeakers, and other payloads, the tethered drone can perform long‑duration video capture, area surveillance, high‑power lighting, search and illumination, public address, etc. It is widely used in cinematography, emergency lighting, communication command, aerial monitoring, public security, traffic supervision, disaster relief, emergency firefighting, news reporting, scientific research, and defense.

Flight altitude 30m / 50m Rated 1200W / Peak 1500W Smart auto wind/unwind IP54 / IPx4 protection
Overall Specifications
Compatible Models DJI Matrice 4E, DJI Matrice 4T
Supported Flight Altitude 30m or 50m; cable length optional 33m or 55m, with safety margin; custom lengths supported
Flight Duration >24h, depends on external power source
Safety Features Remote wireless high‑voltage on/off – no need to approach the tether box; automatic cable winding/unwinding synchronised with drone takeoff and landing; external power interruption triggers auto cable retrieval to prevent landing conflicts
Environmental Operating ‑20~45°C; storage ‑40~65°C
Ingress Protection Onboard unit IP54, tether box IPx4
Packaging Carrying case (D495×W410×H220mm), weight 3kg
Tether Box (Ground Module) Specifications
Input Voltage 190~240VAC, single‑phase 220VAC@50/60Hz
Output Voltage 600~850VDC (default 850VDC)
Output Power Rated 1200W continuous, peak 1500W
Cable Length 33m or 55m standard, custom available
Winding Speed 0~3m/s, intelligent dynamic continuous adjustment
Cable Tension 0~10N, adjustable torque limit, slope, and output continuously
Communication Wired/wireless, multi‑device interconnection, intelligent monitoring
Display Voltage, current, temperature, energy consumption, cable length, runtime, status, and fault logs
Control Methods Keypad, mobile App, remote host, drone remote controller (display, setting, control)
Protections Over‑/under‑voltage, over‑current, over‑temperature, short‑circuit; power‑off, cable over‑extension, cable break protection
Alarm Fault display on screen, audible buzzer
Cable Material Galvanised steel conductor + Teflon high‑temp insulation + tensile film jacket + high‑strength aramid fibre braid
Interfaces LP12 (in/out), AC switch, Bluetooth antenna, Type‑C
Dimensions D275×W146×H200mm (excluding feet and handle)
Weight Box 4.8kg, cable 3m or 5m (with light)
Onboard Power Supply (Air Module) Specifications
Input Voltage 600~850VDC (wide range)
Output Voltage 16.5VDC regulated
Output Power Rated 600W continuous, peak 800W
Mounting Replaces drone battery, direct plug‑in lock
Interfaces LP12 (input), XT30 (light output), drone battery connector
Dimensions 126×42×44/108mm (L‑shape)
Weight 370g (replaces 401g drone battery)
L6 Floodlight (Payload Module) Specifications
Light Power 600W, boost mode 1200W
Luminous Flux 100,000 lm @ ~168 lm/W
Operating Voltage 800~1000VDC (direct system supply, high voltage low current, lower temperature, higher illuminance)
Illuminated Area 1000㎡@30m, 3000㎡@50m; interchangeable lens for larger area
Illuminance 90 lux@20m, 42 lux@30m, 15 lux@50m
Weight (light unit) 270g
Mounting Tool‑free hand‑tightened screws under the belly, cable plugs into onboard supply
Control Keypad, App, remote host, drone remote controller; auto‑on during takeoff, auto‑off after landing; thermal and power‑derating protection. Manual mode: click for step dimming, long‑press for stepless dimming and strobe.
AS1 Speaker (Payload Module) Specifications
Rated Power 15W
Sound Pressure @1m 114dB
Broadcast Range ≥300m
Visual Range ≥500m
Broadcast Modes Live, recorded, media import, text‑to‑speech
Mounting Tool‑free hand‑tightened screws on top
Dimensions / Weight 73×70×47mm, 90g
AL1 Searchlight (Payload Module) Specifications
Max Power 32W
Centre Illuminance 17 lux@50m, 4.3 lux@100m
Illuminated Area 1300㎡@100m (normal), 2200㎡@100m (wide)
Operating Modes Constant, strobe
Gimbal Tilt ‑90°~35°, max speed 120°/s
Mounting Tool‑free hand‑tightened screws on top
Dimensions / Weight 79×164×28mm, 91g
T40S Speaker + Light Combo (Payload Module) Specifications
Max Power 40W
Sound Pressure @1m 120dB
Lighting Combined, 14° beam angle, 5‑colour strobe
Broadcast Methods 4G handheld mic, Skypixel 2, Pilot2, mini‑program; supports return audio
Illuminated Area 113㎡@50m, 471㎡@100m, 1063㎡@150m
Centre Illuminance 30 lux@50m, 7 lux@100m, 3 lux@150m
Gimbal ‑90° to +35°, coupled with drone camera
Mounting Tool‑free hand‑tightened on top
Dimensions / Weight 146×65×96mm, 175g
DS4 Warning Screen (Payload Module) Specifications
Screen Size 23.4 inches
Rated Power 45W
Text Playback Page flip, carousel; visibility ≥100m
Strobe Modes Single‑colour, alternating two‑colour, RGBYW; visibility ≥1000m
Control DJI PSDK, mobile App, WeChat mini‑program
Mounting Slider quick‑release (pre‑installed thumb screws)
Weight 240g
Optional Payload Modules (supports multiple mounts)
L6 Floodlight AS1 Speaker AL1 Searchlight T40S Speaker + Light Combo DS4 Warning Screen
Packing List
No. Item Model Qty Unit Remarks
1 Tether Box G12 1 pc
2 Onboard Power Supply P6-M4 1 pc
3 Floodlight L6-M4 1 pc
4 Power Cord 3×0.5mm² ×1.5m 1 pc For tether box, with connector
5
6
7
8
9
10
Note: The floodlight is optional; ignore related content if not selected.
Frequently Asked Questions
Q1: Can I touch the tether cable after high‑voltage is turned on?
No. The manual clearly states that no operation on the tether equipment is required during the entire flight after high‑voltage is enabled. The cable carries high voltage; although insulated and capable of withstanding 3500VDC, in humid conditions or if worn/cracked, there is a risk of leakage. Even with insulated gloves, contact is dangerous. Our system is contact‑free by design.
Q2: Can I turn on the tether box high‑voltage before starting the drone?
No. The drone performs a self‑check after power‑on and requires battery data communication. If high‑voltage is applied first, only power is provided without battery data, which may cause the drone to fail self‑check and report errors. The correct sequence is: start remote controller → start drone and wait for self‑check → apply AC power to tether box → enable high‑voltage → take off.
Q3: Do I need to constantly monitor the tether box during flight?
No. The operator should focus on the drone itself. Check the voltage on the remote controller screen – if it stays above 16V, power is normal. If it drops below 16V or an alarm occurs, land the drone first and then investigate.
Q4: The tether box display voltage fluctuates significantly and won’t stabilise. What to do?
Land the drone and check battery level or power source capacity. a) Drone battery is low – the tether supply must power the drone and payloads while charging the battery, triggering overload protection. b) Insufficient input power – triggers under‑voltage protection.
Q5: The remote controller alerts “Battery contact issue, return or land” or “Insufficient battery power, return or land”. How to handle?
This is normal and requires no action. Since both drone and payloads are powered by the tether system, the drone detects no battery output during flight. As long as the battery latch is secure, ignore the warning.
Q6: The remote controller shows “Strong wind, fly with caution”. What to do?
If this occurs in calm or light wind, check whether the payload is overweight or the cable tension is set too high.
Q7: If the working altitude is far below the cable length (e.g., 55m cable but only 10m needed), should I pull out all the cable beforehand?
No. Instead, approximately every hour, fly the drone higher to passively pull out the cable for heat dissipation, hover for about 1 minute, then return to the normal working altitude.
Q8: Why can’t I turn on the floodlight when the drone is on the ground?
The floodlight lacks active cooling and relies on drone propeller airflow for heat dissipation. The software prohibits turning it on before takeoff to a certain height and automatically turns it off after landing to prevent overheating.
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