Keep your Matrice 400 flying. Non-stop.
The G35-M400 / G70-M400 tethered power system keeps the DJI Matrice 400 airborne 24 h+ with heavy payloads. Choose the 3.5 kW G35-M400 ground unit for standard duties or the 7 kW G70-M400 for the heaviest, longest missions — both feed a tool-free airborne module (850 g) over a high-voltage tether. If ground power is cut the drone flies and lands normally while the cable auto-retracts; cable break, disconnect or short-circuit trigger instant HV cutoff.
How the G35-M400 keeps power flowing
Ground power
Mains, generator or portable power station — 190–240 VAC in.
Ground station
AC/DC converter, motorized winch, comms, cooling and control in one case.
High-voltage tether
600–850 VDC over a lightweight cable, 110 m or 220 m, auto-retracting.
Airborne module
850 g unit in the battery bays steps voltage down to a regulated output.
M400 + payloads
Camera, floodlight, searchlight, speaker, drop or relay — fed continuously.
Ground station — G35-M400 / G70-M400
One wheeled case holds everything: the AC/DC converter turns single-phase 220 V input into 600–850 VDC (3.5 kW or 7 kW class), the servo-driven winch pays out and retrieves cable at 0–5 m/s with tension that adapts to the aircraft, 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 850 g module replaces one battery pack and mounts with the same quick-release interface — no brackets, no rewiring. It converts the high-voltage tether input to a constant, regulated output that feeds 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
Manufacturer datasheet values for the G35-M400 and G70-M400 tethered power systems.
System · Overall
| Compatible platforms | Matrice 400 — battery-bay swap, no drone modification |
| Ground units | G35-M400 (3.5 kW) · G70-M400 (7 kW) |
| Flight endurance | > 24 h continuous (mains or generator supply) |
| Tether cable | 55 m / 110 m (G35) · 55 m / 110 m / 165 m / 220 m (G70) |
| Ingress protection | Airborne module IP54 · Tether box IPX4 |
Ground Power Unit (G35-M400)
| Rated output | 3,500 W |
| Tether box size | 360 × 185 × 260 mm |
| Weight | 9.5 kg |
| Input | Single-phase 220 V AC, 50/60 Hz |
| Protection | Over/under-voltage, over-current, over-temp, short-circuit with auto-recovery; power-loss, over-unspool and cable-break protection. |
Ground Power Unit (G70-M400)
| Rated output | 7,000 W |
| Tether box size | 450 × 280 × 345 mm |
| Weight | 17.5 kg |
| Input | Single-phase 220 V AC, 50/60 Hz |
| Protection | Over/under-voltage, over-current, over-temp, short-circuit with auto-recovery; power-loss, over-unspool and cable-break protection. |
Airborne Module
| Model | G35-M400 / G70-M400 |
| Rated output | 3,000 W |
| Output voltage | 51.5 V DC (no light) / 51.9 V DC (with L24) |
| Size / weight | 160 × 75 × 53 mm · 850 g |
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 |
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 |
Matched Portable Generators (4.2 / 6.5 kW)
| G35-M400 ground | 4.2 kW rated · peak 4.5 kW · 8 L · 28.5 kg |
| G70-M400 ground, with L24 | 6.5 kW rated · peak 7 kW · 14 L · 49.5 kg |
What 24 hours of hovering is for
Matched to what a DJI Matrice 400-class platform can actually carry — lighting, comms, cameras and speakers.
Questions buyers ask first
Do I need a generator, and which one?
What does the kit price include, and what is the MOQ?
Which cable length should I choose?
What happens if ground power is cut?
Can the payloads be used together?
What about certification, shipping and warranty?
Tell us your mission, get a quote in 24 h
Share your 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