Dji M350 Tether Power System Support Flight Duration More Than 24 Hours.

• Customization: Available
• Cable Length: 55m/110m/160m
• Output Power: 3500W
• Work Temperature: -20 to 45 Degrees Celsius
• Cable Collection Type: Automatic Reel in and out
• Hovering Time: 24 Hours
• Input Voltage: 110-220V
• Transport Package: Carton Case
• Specification: 360*280*165
• Trademark: Rosefinch
• Origin: Nanjing, China
• Production Capacity: 1000/Year

Product Description

DJI M350 Tether Power System Support Flight Duration More Than 24 hours.

1. Typical characteristics
1). Small in size, light weight, backpack storage, easy to carry, with a tethered box weighing only 8.5 kg.
2). The operation is simple, and the entire process of unmanned aerial vehicle takeoff and landing does not require the operation of the tethering box, truly automated cable reel in/out.
3). The air module power supply has a constant voltage output, and the backup battery has no charging or discharging phenomenon throughout the entire process, without losing power or causing hidden damage.

2. Adapted to DJI M300/350
1). Support flight duration: ≥ 24 hours.
2). Support flight height: ≥ 50m/100m/150m (cable length has 55m, 110m and 160m).
3). Optional lighting: 640W or 1280W.

3. Functional characteristics
1). Automatic reel in/out: Follow the takeoff and landing of the UAV to synchronously cable reel in/out, adaptively cable tension auto management, and backup battery to activate cable reel in function in case of power cut off.
2). Communication function: Wired and wireless communication function, support remote display and control, client-side data viewing and downloading.
3). Protection function: Separate design for strong and weak electricity. Input and output voltage resistance≥3000VDC, tethered cable insulation voltage resistance≥3500VDC. Input overvoltage and undervoltage protection. Output overvoltage, overcurrent, short circuit, over temperature protection, fault elimination and self recovery. 
4). Data display function: Touch screen displays data such as voltage, current, temperature, cable outlet length, date, time, operation records, fault records, running time, total power consumption, and working status information.
5). Set adjustment: The display screen supports the setting and adjustment of wire winding speed, wire reel in tension, wire reel out tension, safety length, date and time, alarm temperature, and supports Chinese and English.
6). Fault alarm function: When the system malfunctions, the display screen scrolls to display fault information, and the buzzer strong sound reminder.
7). Equipment carrying: With a backpack design, the backpack can be equipped with a complete set of tethering systems, including a tethering box, air module power supply, lighting unit (optional), and other accessories. The overall weight is 12 ± 0.5kg.
8). 5800W/7000Wh outdoor mobile power bank or 4300W/6.0L generator is recommended.

4.Parameters

Items		Technical parameters
Ambient temperature		-20~45 ºC (working), -40~65 ºC (storage)
Relative humidity		10-80% RH (working), 5-90% RH (storage)
Altitude		≤ 3000m
Tethering power module	Input voltage	190-240Vac wide range input, single-phase 220Vac@50/60Hz
	Output voltage	600~810Vdc adjustable, factory default 750Vdc
	Output power	3500W (rated long-term output), 4000W (peak value ≤ 30s)
	Retraction speed	0-2m/s, adjustable
	Pulling force	0-10N, adjustable
	Interface	Input socket with switch, cable output XT60 connector
	Buttons and switches	High-voltage on/off button, cable forced retraction button, AC switch, backup battery switch for reel in cable
	Size	360 ×180 ×260 ± 0.5mm, excluding foot pads and handles
	Weight	8.5 ± 0.2kg, including 110m tethered cable
Tether cable	Material	Silver plated lightweight high-temperature resistant aviation wire, lightweight high-temperature resistant sheath
	Current	3-5A
	DC resistance	10.5 ± 0.2 Ω, 100m@20 ºC loop
	Tensile strength	≥ 20kg, resistant to repeated retraction and release times ≥ 500 times
	Insulation strength	≥ 3000Vdc, no breakdown for 1 minute
	Cable length	Standard tethered cable 55m; 110m and 160m are optional
	Outer diameter	2.3 ± 0.1mm
	Weight	10g±0.5g/meter
Air module	Input voltage	580~810Vdc wide range input
	Output voltage	51.5 ± 0.5Vdc, constant voltage output
	Output power	3000W (rated long-term output), 3500W (peak value ≤ 10s)
	Protection function	Input overvoltage and undervoltage protection, output overvoltage, overcurrent, short circuit, and over temperature protection
	Isolation voltage	3000V (Vin-Vout), 1min, leakage current ≤ 5mA, no breakdown, flashover, or corona phenomenon
	Installation method	Replacement battery latch, docking battery, side mounting
	Heat dissipation method	External fan for active cooling, reserved air ducts for forced air cooling
	Interface	Input XT60, output battery interface (powered by drones), output XT60 (powered by lighting)
	Protection level	IP54
	Size	158 × 92 × 115 ± 0.5mm (replace one TB60 battery without occupying additional installation space)
	Weight	960 ± 10g

Rosefinch Technology is the leading manufacturer of drone tethering power station.
Rosefinch mainly engages in the R&D, production, sales of AC-DC, DC-DC high-frequency switching power modular and the drone tether power system.The system is compatible for all multi rotor drones with MTOW 3-110kg.

These products are used and deployed by armed forces, law enforcement, civil security, and private security in over 20 countries for event protection, perimeter surveillance, border protection, radio communications, long-duration health monitoring, emergency communication, traffic management, environment inspections, scientific research and many more.

We have always adhered to independent research and development of core technologies. The air module adopts a output voltage stabilizing circuit scheme, with a wide range of input and constant voltage output, which is different from the commonly used Vicor power supply unstable voltage scheme on the market. It can ensure that the backup battery in parallel with it has no charging or discharging phenomenon, no battery capacity loss, and is only used as backup battery for landing, achieving true long-term tethering flight without battery capacity loss; The automatic cable reel in & out control adopts a difference between the reel out tension and reel in tension, and an adaptive torque transformation scheme, chieving true automatic tether cable reel in & out function without human intervention.
Certificate
Our products are qualified by CNAS and other third party testing, and also got the CE certificate from UDEM(LVD+EMC).

For drone tethered power system,you can choose several types from below form:
1.DJI Mavic 3 Tethered Power System
2.DJI M30 Tethered Power System
3.DJI M350 Tethered Power System V2
4.DJI M350 Tethered Power System V1
5.DJI Flycart30 Tether power system
6.600W Universal Tethered Power System
7.2000W Universal Tethered Power System
8.3000W Universal Tethered Power System V3
10.3000W Universal Tethered Power Station V2
11.3000W Universal Tethering Power Station V1
12.6000W Universal Tethered Power System
13.12000W Universal Tethered Power Supply System
14.18000W Universal Tethered Power Supply System