Hobbywing Seaking 300A HV V4 Marine ESC

The Hobbywing Seaking 300A HV V4 Marine ESC (HW30301202) is a waterproof, sensorless brushless speed controller engineered for high-power RC boats. Delivering 300A continuous and up to 1600A peak on 5–14S LiPo, it pairs heavy-duty current handling with a robust 8A switch-mode BEC selectable at 6V, 7.4V or 8.4V to suit modern receivers and servos. Built-in Bluetooth enables convenient setup via the HW LINK App, while comprehensive programming and data functions support precise tuning and performance tracking.

Key Specifications

• Type: Brushless, Sensorless
• Waterproof: Yes
• Continuous / Peak Current: 300A / 1600A
• Input Voltage: 5–14S LiPo
• BEC: Switch-mode 6V / 7.4V / 8.4V @ 8A
• Input Wires: Black 8AWG 200mm ×1; Red 8AWG 200mm ×1
• Output Wires: No
• Input Connectors: No
• Output Connectors: 8.0mm female
• Size: 94 × 58.8 × 43 mm
• Weight: 443 g (including wires)

Programming And Telemetry

• ESC programming via: LED Program Box, LCD G2 Program Box, LCD PRO, OTA Programmer
• HW LINK App support (built-in Bluetooth)
• Data recording: Extreme value
• Real-time data
• Historical data (graph)
• Firmware upgrade supported

Suggested Compatibility

• Suggested compatibility: RC boats up to 180 cm (≤180CM)

Designed for larger hulls and HV setups, the Hobbywing Seaking 300A HV V4 offers dependable power delivery and flexible configuration for demanding marine applications.