SEAKING 300A HV V4 ESC

For RC boaters who push the limits, the Seaking 300A HV V4 is your ultimate electronic speed controller. Designed for high-load, large-scale marine models, it packs unmatched power handling with intelligent control—all housed in a rugged aluminum casing. Whether you're racing, bashing, or building a high-performance project, this ESC is built to dominate the water.

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Key Features for Serious RC Enthusiasts

Massive Power Handling

• Supports up to 14S LiPo input

• Delivers a continuous current of 300A

• Designed for extreme load applications in large boats (1/5–1/4 scale or up to 1.8m+ hulls)

IP67 Waterproof & Dustproof

• Completely sealed all-metal housing

• No extra waterproofing required

• Ready for saltwater, muddy rivers, spray, and rain

Built-In Bluetooth Module

• Connect directly to the HW Link V2 App (iOS & Android)

• Easily adjust parameters, update firmware, and review logs wirelessly—no programming card required

Onboard Data Logging

• 10-minute internal log memory

• View ESC & motor performance (voltage, RPM, temp) via app in graph format

• Fine-tune your setup based on real performance metrics

Heavy-Duty Built-In BEC

• Switchable output: 6V / 7.4V / 8.4V

• Output current: 28A peak

• Powers high-torque/high-voltage servos, winches, and lighting systems effortlessly

Integrated Spark-Proof Circuit

• Eliminates dangerous arcing during power-up

• Safeguards battery connectors and protects users from electrical spark injuries

Advanced Capacitor Pack

• Built-in 4080μF super capacitor bank

• Removes the need for external capacitors in 99% of builds

• Includes capacitor overheat protection for reliable performance under stress

Thermal Management + Freewheeling Tech

• Freewheeling mode lowers ESC temps during deceleration

• Improves handling during cornering and quick throttle transitions

• Built-in metal heatsink + radiator with optional water-cooling upgrade

Multiple Programming Options

• Program via:

  • Bluetooth app

  • Independent programming port for LED/LCD programming boxes

• Adjust 11 detailed parameters, including:

  • Throttle curve

  • Timing

  • Start mode

  • Brake type and more

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Technical Specifications

Specification	Details
Type	Brushless Marine ESC
Model	Seaking 300A HV V4 (HW30302400)
Cont./Peak Current	300A / 1050A
Input Voltage	6–14S LiPo (22.2V–59.2V)
BEC Output	6V / 7.4V / 8.4V @ 28A (peak)
Cooling System	All-metal case w/ radiator & optional H2O
Programmable Parameters	11
Waterproof Rating	IP67 (fully waterproof/dustproof)
Connectivity	Built-in Bluetooth & Program Port
Data Logging	Internal 10-minute log memory
Size	TBD (typically around 110mm length class)
Weight	TBD (est. 400g+)

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Ideal For:

• Large-scale electric RC boats (1.5–2m+)

• High-performance marine racing builds

• Competitive speed boats requiring bulletproof power delivery

• Builders who want Bluetooth convenience + real-time data access

 

SpecificationsType
Brushed/Brushless: Brushless
Sensored/Sensorless: Sensorless
Waterproof: Waterproof

Specifications
Cont./Peak Current: 300A/1600A
Input Voltage: 5-14S Lipo
BEC Output: Switch Mode 6V/7.4V/8.4V @8A

Wires & Connectors
Input Wires: Black-8AWG-200mm*1 Red-8AWG-200mm*1
Output Wires: No
Input Connectors: No
Output Connectors: 8.0mm Female

Esc Programming Via
LED Program Box: Supported
LCD G2 Program Box: Supported
LCD Pro: Supported
OTA Programmer: Supported
HW LINK APP: Supported(Built-in Bluetooth)

Data Recording
Extreme Value: Supported
Real-Time Data: Supported
Historical Data (Graph): Supported

Firmware
Firmware Upgrade: Supported

Size & Weight
Size: 94*58.8*43mm
Weight: 443g (Included wires)

Applications
Boat Applicable: ≤180CM