UBEC 25A HV (3-18s)

The Hobbywing UBEC 25A HV (3–18S) is a professional high-voltage DC-DC regulator designed to provide stable power for RC aircraft, large helicopters, UAV platforms, multirotor drones, fixed-wing aircraft, VTOL systems, and professional onboard electronics.

Built for reliable power conversion, this 25A HV UBEC takes voltage from a 3–18S LiPo battery system and converts it into a stable output suitable for servos, receivers, flight controllers, gimbals, and other electronic equipment.

High-Voltage 3–18S Compatibility

The UBEC 25A HV supports a wide 3–18S LiPo input voltage range, equivalent to approximately 9–80V.

This wide input compatibility makes it suitable for large RC aircraft, industrial UAVs, VTOL platforms, high-voltage drone systems, and custom electric propulsion setups requiring a separate regulated power supply.

Adjustable Output Voltage

The output voltage is adjustable in four stages: 5.2V, 6.0V, 7.4V, and 8.4V.

This allows the UBEC to power a wide range of onboard equipment, including standard servos, HV servos, receivers, flight controllers, gimbals, and auxiliary electronics requiring stable regulated voltage.

25A Continuous / 50A Peak Output

The Hobbywing UBEC 25A HV provides 25A continuous current and up to 50A peak current, making it suitable for demanding systems with multiple servos or electronics requiring strong and stable current delivery.

This makes it especially useful for large helicopters, large fixed-wing aircraft, professional UAVs, and industrial drone platforms with high onboard power requirements.

High-Efficiency DC-DC Regulation

The UBEC uses a high-efficiency switch-mode DC-DC regulator with conversion efficiency of more than 90%.

This helps reduce energy loss, improve thermal performance, and provide stable power conversion in demanding UAV and RC aircraft installations.

Backup Power Supply Support

The UBEC 25A HV supports a 1–2S LiPo backup power supply input.

If the main power supply is damaged or the UBEC experiences an internal fault, the connected electronic devices can receive power from the backup supply to help maintain normal operation.

This feature is useful for professional UAV and RC systems where power redundancy is important.

Built-In Protection Features

The Hobbywing UBEC 25A HV includes multiple protection functions to improve system safety and reliability.

These include over-current protection, output short-circuit protection, overheat protection, low-voltage cut-off, and shoot-through protection to help prevent main battery voltage from directly reaching the UBEC output in case of damage.

Metal Housing & LED Status Indicators

The UBEC features a metal housing designed to improve heat dissipation and reduce electromagnetic interference.

It also includes LED indicators to show working status and backup power connection status, making installation and troubleshooting easier.

Professional UAV & RC Applications

The Hobbywing UBEC 25A HV (3–18S) is ideal for RC aircraft, large helicopters, UAVs, multirotor drones, fixed-wing platforms, VTOL aircraft, servo systems, and professional onboard electronics.

Its combination of 3–18S input compatibility, adjustable output voltage, 25A continuous current, 50A peak current, backup power input, and built-in protection makes it a reliable regulated power solution for demanding electric aircraft applications.

Technical Specifications

Product: Hobbywing UBEC 25A HV (3–18S)
Brand: Hobbywing
Product Number: 30606000
Product Type: High-Voltage UBEC / DC-DC Voltage Regulator
Regulator Type: Switch Mode
Input Voltage: 3–18S LiPo / 9–80V
Backup Input Voltage: 1–2S LiPo / 3–9V
Output Voltage: 5.2V / 6.0V / 7.4V / 8.4V adjustable
Output Current: 25A continuous / 50A peak
Conversion Efficiency: More than 90%
Protection Features: Shoot-through protection, over-current protection, output short-circuit protection, overheat protection and low-voltage cut-off
Input Wires: 16AWG main power wires, 270 mm
Backup Wires: 16AWG backup power wires, 150 mm
Output Interface: 3P vertical pin header, 3P-JR output cables included
Dimensions: 55 × 40.2 × 17.6 mm
Weight: Approx. 74 g
Recommended Use: RC aircraft, large helicopters, UAVs, drones, VTOL platforms, receivers, servos, flight controllers and onboard electronics