ePropulsion X40: A 60-HP-Equivalent Electric Outboard with 40 kW Continuous Power

Marine electric propulsion specialist ePropulsion has launched the X40, an electric outboard motor delivering 40 kilowatts of continuous power — roughly equivalent to a 60-horsepower gasoline outboard. The X40 is aimed at boaters looking for a powerful, low-noise, low-maintenance alternative to internal combustion engines while retaining familiar installation and control features.

Performance and Range

In sea trials, the X40 demonstrated practical performance across a range of operating modes. Testing showed a range of 19.4 nautical miles at 1,500 rpm. When run at 20 kW output, the motor achieved 8.3 knots with about two hours of runtime. Pushing the motor to its full continuous 40 kW output produced speeds up to 19 knots, with roughly an hour of runtime at that level.

Those figures give a clear view of trade-offs between speed and endurance for the X40: moderate cruising at lower power yields significantly more range, whereas higher-speed operation substantially increases energy consumption and reduces runtime. These real-world numbers will help owners plan trips and select appropriate battery capacity for their intended use.

Battery, Service Life and Weight

The X40 is paired with a 96-volt battery system that the manufacturer rates with a service life of 5,000 hours. That lifespan metric applies to the battery system’s expected usable life before significant degradation, offering a long-lived solution for frequent marine use. Without the external control systems attached, the motor unit itself weighs 218 pounds, a consideration for mounting, handling and installation on a transom.

Quiet Operation and Vibration Control

One of the key selling points of the X40 is its low noise signature. Thanks to vibration-dampening technology, ePropulsion reports the motor operates at under 73 dBA — a sound level comparable to a quiet office environment. Reduced noise is a tangible benefit for anglers, day-cruisers and passengers who prefer a more peaceful onboard experience, and it also lessens disturbance to wildlife and shoreline communities.

Integrated Controls and Simplified Installation

The X40 incorporates integrated electric steering and power trim and tilt. By removing the need for hydraulic steering components, the motor simplifies installation and cuts down on complex plumbing and wiring. Integrated electric actuation also eases long-term maintenance compared with hydraulic systems, and it streamlines retrofits on boats not originally equipped for hydraulics.

Driving Assistance and Smart Features

The outboard already includes several electronic driving assistance functions designed to improve handling and safety. Available features at launch include Position Hold, enabling the boat to stay in one place; Heading Hold, which maintains a set compass heading; and 360 Motions, which assists with omnidirectional maneuvering. ePropulsion says additional assistance features are planned to expand the motor’s capabilities over time.

Connectivity: ePropulsion Link

The manufacturer offers ePropulsion Link, a connectivity service that supplies real-time operational statistics and enables over-the-air updates for the motor and battery management system. Access to live data and software updates helps owners monitor performance, manage battery usage, and receive improvements as they become available without requiring a service visit.

Environmental and Operational Savings

ePropulsion estimates the X40 will save approximately 5 gallons of gasoline per hour and reduce CO2 emissions by about 97.5 pounds per hour when compared to a conventional 60-horsepower internal combustion outboard. Those savings will vary based on operating conditions, speeds and battery charging sources, but the metrics illustrate the potential environmental and fuel-cost advantages of switching to electric propulsion.

Who Should Consider the X40

The X40 targets boaters who need power comparable to a 60-hp outboard but prefer the quiet, low-emission benefits of electric propulsion. It is well-suited for day cruisers, fishing boats and workboats that frequently operate in noise- or emission-sensitive areas, and for owners who value simplified installation and reduced hydraulic maintenance. Prospective buyers should evaluate the trade-offs between speed and range and select battery capacity and charging strategies that match their intended use.

Summary

The ePropulsion X40 delivers strong continuous power, long battery service life and a notably quiet operation, packaged with integrated steering and trim systems that simplify installation. With driving assistance features and over-the-air connectivity through ePropulsion Link, the X40 represents a modern electric outboard option for boaters looking to reduce emissions, lower noise and simplify system maintenance while retaining comparable performance to a traditional 60-horsepower engine.