Radio-controlled speedboat Henglong 3837 Red Neptune 70 cm battery capacity 1800 mAh

Remote Control High-Speed Boat Henglong 3837 Red Neptune 70 cm Battery Capacity 1800 mAh

Impressive Dimensions and Hull Detailing

The Henglong 3837 radio-controlled model is a detailed large-scale replica of a modern royal yacht. With a hull length of 70 centimeters, it ensures excellent visibility at long distances and superior stability on the water surface. The hull design is engineered considering the hydrodynamic properties of high-speed vessels: the pointed bow and sleek lines of the sides promote quick planing and minimize water resistance. Imitations of deck superstructures, railings, and the captain's bridge give the model a realistic look, matching the appearance of premium-class pleasure vessels.

Dual-Motor Power Plant and Speed Capabilities

The model is equipped with two 380-series brushed electric motors that drive two independent propellers. The use of twin motors allows the boat to reach speeds of up to 25 km/h while ensuring high maneuverability. Steering is achieved through the difference in rotation speeds of the propellers, allowing for sharp turns and confident course-holding even in light waves. The system is powered by a 1800 mAh lithium-ion battery, providing sufficient resources for extended runs on open bodies of water.

Protection and Control Technologies

To ensure the longevity of the electronics, the boat features a waterproof hull construction. The upper deck fits tightly to the main body, preventing splashes from entering the internal compartment containing the motors and servos. The remote control operates on an interference-resistant frequency, allowing multiple models to be launched simultaneously without the risk of signal crossing. The communication range reaches 100 meters, providing full freedom of maneuvering on lakes or calm river backwaters. A built-in motor cooling system effectively dissipates heat during intensive operation, extending the service life of the power units.

Technical Specifications

• Brand: Henglong

• Country of Brand Registration: China

• Material: ABS plastic, metal, rubber

• Size: 700 mm x 200 mm x 195 mm

• Color: White, blue, red

• Weight: 1100 grams

• Gender: Unisex

• Condition: New

• Battery Capacity: 1800 mAh

• Product Group: Radio-controlled boat models

• Purpose: Recreational launches on open water, modeling

• Compatibility: Standard chargers with Tamiya/JST connectors, AA batteries for the remote control

• Features: Twin-motor system, water-resistant hull, high deck detailing, proportional control

• Motor Type: Electric, brushed (2 pcs.)

• Maximum Speed: 25 km/h

• Operating Time: 15–20 minutes

• Charging Time: 180 minutes

• Control Range: 100 meters

• Control Type: 2.4 GHz radio channel

• Battery Type: Li-Ion 7.4 V

• Set Includes: Boat, remote control, battery pack, charger, display stand, spare propellers