Overview
Hobbywing SeaKing Pro 70A G2 is an electronic speed controller (ESC) for RC boat racing, optimized for Mini ECO, Mini Mono, and Mini Hydro class models. It is a sensorless brushless (BL/SL) ESC supporting 2–4S LiPo and water resistance rated Waterproof (IP55).
Key Features
- Lightweight and compact design for mini boat competitions
- Professional water-resistant technology with a nano waterproof coating on the circuit board and components
- Switch-mode BEC: 6V / 7.4V / 8.4V @ 5A; maximum output current 10A
- Turbo Acceleration / Turbo timing adjustment for rapid acceleration; Turbo deceleration speed is adjustable
- Adjustable PWM frequency for precise throttle output control
- Freewheeling function (programmable): cooler ESC temperature, faster deceleration when throttle is released, improved cornering control and handling
- Data logging with optional OTA Bluetooth module: real-time throttle, voltage, current, temperature, and RPM via smartphone app; Bluetooth range is 5 meters
- Firmware upgrades supported (requires LCD programming box or OTA module/programmer, sold separately); supports Hobbywing USB LINK software and HW LINK mobile app
- Protection functions: low voltage protection, over-temperature protection, throttle signal loss protection, capacitor overheating protection
- Detachable water-cooling heatsink (removable)
Specifications
| Product Name | Seaking PRO 70A G2 |
| Product Number | 30302560 |
| Brushed/Brushless | BL |
| Sensored/Sensorless | SL |
| Waterproof | Waterproof (IP55) |
| Continuous/Peak Current | 70A / 200A |
| Input Voltage | 2–4S LiPo |
| BEC Output | Switch mode 6V / 7.4V / 8.4V @ 5A |
| Input Wires | Red-14AWG-100mm×1, Black-14AWG-100mm×1 |
| Output Wires | Black-16AWG-80mm×3 |
| Input Connectors | No |
| Output Connectors | 4.0mm Female plug |
| ESC Programming via LED Program Box | Supported |
| ESC Programming via LCD G2 Program Box | Supported |
| ESC Programming via LCD PRO | Supported |
| ESC Programming via OTA Programmer | Supported |
| ESC Programming via Program Port | Throttle wires & yellow wire |
| Data Recording (Extreme value) | Supported |
| Data Recording (Real-time Data) | Supported |
| Data Recording (Built-in Historical Data - Graph) | Not Supported |
| Data Recording (External OTA Historical Data - Graph) | Supported |
| Firmware Upgrade | Supported |
| Size | 38.5×30×8.4mm |
| Weight | 35g (Without water cooling pipe) |
| Applicable Boat | Mini Mono, Mini ECO, Mini Hydro competition |
Programmable Parameters
Programmable items include the following options:
- Running Mode: Forward Only; Forward and Reverse
- Max. Reverse Force: 25%, 50%, 75%, 100%
- LiPo Cells: Auto, 2S, 3S, 4S
- Cutoff Voltage: Disabled, 2.6V/Cell, 2.8V/Cell, 3.0V/Cell, 3.1V/Cell, 3.2V/Cell, 3.3V/Cell, 3.4V/Cell, 3.6V/Cell
- BEC Voltage: 6.0V, 7.4V, 8.4V
- Motor Rotation: CCW, CW
- Punch: Level 1, Level 2, Level 3, Level 4, Level 5, Level 6, Level 7
- Freewheeling: Disabled, Enabled
- Drag Brake Force: Disabled, 10%, 25%, 50%, 75%, 100%
- Timing: 10.0°, 12.5°, 15.0°, 17.5°, 20.0°, 25.0°, 27.5°, 30.0°
- AUX CH Function: 2, 7, 9
What’s Included
- (1) HOBBYWING SEAKING Pro 70A ESC
- (1) Manual
For product questions or order support, contact support@rcdrone.top or visit https://rcdrone.top/.
Applications
- Mini Mono
- Mini ECO
- Mini Hydro competition
Manuals
Details

The Hobbywing SeaKing Pro 70A G2 boat ESC has clearly labeled 70A and 2-4S LiPo markings with pre-attached wiring for quick installation.

The SeaKing Pro boat ESC is designed for RC boat racing and is optimized for Mini ECO, Mini Mono, and Mini Hydro class models.

The SeaKing Pro boat ESC uses a nano waterproof coating on the circuit board and components to help improve water resistance.

The SeaKing Pro 70A G2 features a built-in BEC with selectable 6V/7.4V/8.4V output and up to 10A max (5A continuous) current.

The SeaKing Pro 70A G2 boat ESC supports 2–4S LiPo and lists low-voltage, over-temperature, and throttle signal loss protection.

The Hobbywing SeaKing Pro 70A G2 boat ESC features a compact case with integrated water-cooling ports and a clearly marked 2–4S LiPo rating.

The SeaKing Pro boat ESC supports Turbo timing adjustment with adjustable Turbo deceleration for finer throttle response.

The SeaKing Pro boat ESC supports Bluetooth data logging in the app to monitor throttle, voltage, current, temperature, and RPM, with a stated range of 5 meters.

The SeaKing Pro 70A G2 ESC uses a removable water-cooling heatsink to help fit different boat layouts and cooling setups.

SeaKing Pro 70A G2 includes capacitor overheating protection to help safeguard the ESC during demanding runs.

The SeaKing Pro’s Freewheeling function is designed to help keep ESC temperatures cooler while improving deceleration and handling when you release the throttle.

Firmware updates are supported via Hobbywing USB LINK software or the HW LINK mobile app, using an LCD programming box or OTA module (sold separately).

The SeaKing Pro 70A G2 ESC offers 11 programmable options including running mode, LiPo cell count, cutoff voltage, and BEC voltage.
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