G300-12K Universal Tethered Power System
G300-12K · 12,000 W constant-stabilized tethered power for drones with a maximum take-off weight of 45-60KN The onboard module replaces the drone’s flight battery and feeds regulated HV DC from the ground — 24 h+ on station with the original pack held as an untouched reserve. Universal fit means one ground unit powers any brand in the rated MTOW range.
How the G300-12K keeps power flowing
Ground power
Three-phase 380 VAC mains or generator — 380 V ±10%, 3-phase 5-wire, 50 Hz.
Ground station
G300-12K ground station: AC/DC converter, motorized winch, comms, cooling and control in one case.
High-voltage tether
800–1000 VDC (default 1000) over a lightweight cable, 110 m, 220 m or 330 m, auto-retracting.
Airborne module
2.8 kg module in the battery bays steps voltage down to a regulated output.
Drone + payloads
45–60 kg-class heavy-lift drones — camera, light, speaker, drop or relay, fed continuously.
Ground station — G300-12K ground station
One wheeled case holds everything: the AC/DC converter turns the site supply into 800–1000 VDC (default 1000) at rated 20 kW (25 kW peak), the servo-driven winch pays out and retrieves cable automatically (cable tension 0–30 N, retract 0–5 m/s; optical-fiber link optional), and the integrated display, Bluetooth and Type-C links expose live voltage, current, cable length and fault logs to the station screen, a handheld terminal or a PC client. Cooling, cable-break detection and power-fail auto-retract are built in.
Airborne module — battery-bay swap
The 2.8 kg module mounts on reserved threaded holes with the airframe’s own fixings — no brackets, no rewiring. It converts the high-voltage tether input to 50 V, 58 V or 75 V DC, rated 12 kW (15 kW peak) via QS8×2, feeding the aircraft and payload ports directly, so onboard packs stay above 90% as a cold backup throughout the flight. Input and output connectors are keyed and waterproof; the module reports its own status to the ground station over the same cable.
Up close: every part of the kit
Technical specifications
Published Nanjing FeiYing Intelligent Equipment Co., Ltd. specifications for the G300-12K tethered power system.
System Overview
| Supported flight height | 100 m / 200 m / 300 m |
| Tether cable length | 110 m / 220 m / 330 m (custom lengths available) |
| Supported takeoff weight | 45–60 kg |
| Flight endurance | > 24 h (depends on external supply & airframe fatigue) |
| Safety | Contactless high-voltage on/off from a distance — operators never need to approach the tether box, staying clear of HV during operation. |
| Environment | Operating: −20 to 45 °C · Storage: −40 to 65 °C |
| Ingress protection | Airborne module IP54 · Tether box IPX4 |
| Cable material | Silver-plated copper conductor + PTFE high-temp insulation + tight-buffered single-mode fiber + tensile film sheath + high-strength aramid aviation-fiber outer braid |
| Carrying case | 4-wheel brake flight case, 760×720×680 mm, 30 kg |
Airborne Module (Sky End)
| Input voltage | 800–1000 V DC |
| Output voltage | 50 V DC, 58 V DC or 75 V DC |
| Rated / peak output | 12 kW / 15 kW |
| Interface | Input LP20 · Output QS8×2 |
| Dimensions (L×W×H) | 188×230×55 mm |
| Weight | 2.8 kg |
| Installation Method | Reserved threaded installation holes, fixed with screws |
Ground Station (Tether Box)
| Input | 380 ±10% V AC, 3-phase 5-wire, 50 Hz |
| Output voltage (default) | 800–1000 V DC (default 1000 V DC) |
| Rated / peak output | 20 kW / 25 kW |
| Data communication | Wired & wireless; multi-node interconnection, smart display/control; fiber link optional |
| Cable tension | 0–30 N |
| Retract speed | 0–5 m/s |
| Cable weight | 25 g per meter |
| Box weight | 41.8 kg |
| Box dimensions (D×W×H) | 560×440×520 mm |
| Interface & controls | Input WS40 · Output LP20 · AC breaker · BT antenna · Type-C · FC port |
| Protection | Over/under-voltage, over-current, over-temp, short-circuit with auto-recovery; power-loss, over-unspool and cable-break protection. |
Mix & match — tether-fed add-ons
Payloads share the same quick-mount interface and draw power straight from the tether. The generator pairs with the ground unit for off-grid missions. Sold separately.
FeiYing 1200W Searchlight Kit
| Power | 1,200 W |
| Luminous flux | 200,000 lm |
| Weight | 780 g (wires & straps incl.) |
| Control | Button / App / HMI / drone controller |
FeiYing 2400W Searchlight Kit
| Power | 2,400 W |
| Luminous flux | 400,000 lm |
| Weight | 1.5 kg |
| Control | Button / App / HMI / drone controller |
FeiYing 4800W Searchlight Kit
| Power | 4,800 W |
| Luminous flux | 800,000 lm |
| Weight | 3 kg |
| Control | Button / App / HMI / drone controller |
Drone PA Speaker / Broadcasting Payload
| Function | Public address, loudhailer broadcasting, audio recording |
| Mounting | Quick-release mount under the drone body |
| Control | Remote controller audio input |
| Weight | Lightweight — no effect on flight performance |
What 24 hours of hovering is for
Matched to what a universal tethered system can actually carry — lighting, comms, cameras and speakers, on any drone platform.
Questions buyers ask first
What drone brands can I use it with?
Do I need a generator, and which one?
Which cable length should I choose?
What happens if ground power is cut?
Can it power lights and other payloads?
What about certification, shipping and warranty?
Tell us your mission, get a quote in 24 h
Share your drone platform, cable length and payload mix — we’ll confirm compatibility and send a formal quotation. MOQ 1 set, worldwide shipping.
- MOQ 1 set
- Quote within 24 h
- OEM label available
- 12-month warranty