2x WaterWorld battery complete

Available for backorder

 8.875,00

Completely

The WaterWorld battery is supplied complete with charger (15A for 1 or 2 batteries and 35A for 3 or 4 batteries), necessary data cables and battery link.

Super efficient – ​​Affordable and longer sailing

The WaterWorld motor is so efficient that it produces very little heat. Therefore, no water cooling is required! This simplifies installation, eliminates the risk of clogging, and minimizes maintenance. Once on the water, another major advantage is your extended boating experience.

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Available for backorder

WaterWorld inboard 4.0

WaterWorld Inboard 4.0 – Silent and efficient electric boating

The WaterWorld Inboard 4.0 motor offers a virtually silent boating experience thanks to direct drive without mechanical gears. The efficient air-cooled system eliminates the need for water cooling, making installation simple and keeping maintenance to a minimum. Suitable for intensive use with proven Dutch engineering. Supplied complete with controller, touchscreen display, throttle, and ignition key. The modern and cost-effective alternative to diesel engines.

WaterWorld inboard 10

WaterWorld Inboard 10 – Powerful and silent electric boating

The WaterWorld Inboard 10 motor offers a virtually silent boating experience thanks to direct drive without mechanical gears. The efficient air-cooled system eliminates the need for water cooling, making installation simple and keeping maintenance to a minimum. Suitable for intensive and professional use, featuring proven Dutch engineering. Supplied complete with controller, touchscreen display, throttle, and ignition key. The modern and cost-effective alternative to diesel engines.

WaterWorld Inboard 20

WaterWorld Inboard 20 – Powerful and silent electric boating

The WaterWorld Inboard 20 motor (20 kW) offers a virtually silent boating experience thanks to direct drive without mechanical gears. The efficient air-cooled system eliminates the need for water cooling, making installation simple and keeping maintenance to a minimum. Suitable for intensive and professional use, featuring proven Dutch engineering. Supplied complete with controller, touchscreen display, throttle, and ignition key. The modern and cost-effective alternative to diesel engines.

2x WaterWorld battery complete

Completely

The 2x WaterWorld batteries come complete with a charger (35A for 3 or 4 batteries), necessary data cables, and a battery link. The combined batteries have a capacity of 13.6 kWh

Wonderfully quiet sailing

Electric boating always brings peace of mind, but WaterWorld's inboard motors are exceptionally quiet. Thanks to the silent motor and direct drive without gears, you'll hear almost nothing. These motors come complete with a controller, touchscreen display, throttle, ignition key, and relay.

Super efficient – ​​Affordable and longer sailing

The WaterWorld inboard motor is so efficient that it produces very little heat. Therefore, no water cooling is required! This simplifies installation, eliminates the risk of clogging, and minimizes maintenance. Once on the water, another major advantage is your extended boating experience.

Suitable for intensive and professional use

The WaterWorld systems are also used in charter ships, tour boats, and work boats. The robust motors, which can also continuously deliver maximum power, make this possible. The same applies to the batteries, which can withstand up to 3,000 cycles while retaining virtually all of their energy.

The WaterWorld inboard benefits

  • Quiet and clean; the silent motor drives the axle without gears
  • Sail longer; thanks to efficient technology you get the maximum distance from your batteries
  • Reliable; you can rely on proven Dutch technology
  • Easy to install with the adjustable engine mounts, which fit most existing foundations
  • Engine and electronics in one, air-cooled. Water cooling is unnecessary. Affordable; it can replace diesel without much extra cost.

The Engines

WaterWorld offers a range of inboard motors ranging from 4 to 20 kW, suitable for motorboats and sailboats up to 12 meters. A 3.5 kW pod motor is also available in a fixed or steerable configuration. These motors are the modern alternative to the traditional diesel engine. Waterworld inboard and pod

3.5 kW POD

4 kW

7.5 kW

10 kW

20 kW

Voltage 48 V 48 V 48 V 48 V 48 V
Similar to 8 hp 8 hp 15 hp 20 hp 30 hp
For boats up to Up to 7m length or 3 tons Up to 7m length or 3 tons Up to 9m length or 5 tons Up to 10m length or 7.5 tons Up to 12m length or 10 tons
Dimensions in mm 630x120x260 558x226x220 681x295x279 681x295x279 762x307x300
Weight in kg 18 39 76 76 103
When choosing your engine, keep in mind that every boat is different. A sleek, lightweight boat, for example, will sail more efficiently than a wide or heavy one. The sailing area is also important. A lighter engine can be used for sailing in sheltered waters and for shorter distances than for sailing in open water. Always consult your dealer for advice.

WaterWorld Inboard hybrid setup

The WaterWorld systems can also function perfectly in a hybrid configuration. This can be achieved in a parallel hybrid configuration, with a diesel engine and WaterWorld both driving the propeller shaft, or in a series hybrid configuration with a generator as a range extender. Ask us about the possibilities.

Electric propulsion systems in recreational boating

Benefits of electric motors? In short: Clean, quiet, low-maintenance, reliable, practical, super powerful, and a very predictable and controllable range. Want to know more? Be sure to read our blog post about electric boating and then our practical experiences with these beautiful products.

Electric motors can be divided into the following categories:

Inboard engines:

These are engines installed in boats to replace, for example, an existing marine diesel engine or to propel a sloop with a built-in engine. Propulsion is provided, for example, by a propeller shaft or sail drive, and the engine is usually installed lengthwise.

Outboard motors:

These are motors that are mounted, for example, on the stern (transom) of the boat. These motors are therefore more flexible because they are easily accessible and removable. When the voltage is 24 volts or higher, we call it an outboard motor.

Whispering motors:

Whisper motors are the lighter version of outboard motors, operating at voltages below 24 volts. They are often powered by an external 12V battery.

Pods:

These engines are mounted underneath the boat. This has the major advantage that the engine takes up no space inside the boat and is also invisible from the outside.

Water scooter:

Our water scooter is an electric-powered swimming board. When used in reverse, it also doubles as a water cannon. This isn't just a fun toy for young children, but also a very useful aid for less mobile swimmers.

SUP motor:

Stand-up paddleboarding (SUP) is becoming increasingly popular, but it's also a strenuous sport. However, by equipping the SUP with an auxiliary motor, covering long distances becomes much easier. Be sure to read our review of the ePropulsion Vaquita SUP motor.

Canoe or kayak motor:

Just like for the SUP, we also supply support motors for kayaks and canoes.

Assortment of accessories

In addition to all the above types of engines, Robust-MT Marine Technology BV can also provide you with matching batteries, accessories, bags, chargers, controls and parts.

About us

Robust-MT Marine Technology BV is located in Sample on the edge of the water-rich WestlandLocated in South Holland between Rotterdam and The Hague, but also near Delft and the North Sea. Our showroom and workshop are also situated on a main waterway. We also have a mooring on the Haringvliet, near Zeeland, where we can also arrange sea trials. We also collaborate with a renowned yacht builder and shipyard in Woubrugge, near Amsterdam and North Holland. This location also has its own marina, a large crane, and both heated and unheated hangars. In short, no matter how large or small your project, we can provide you with the necessary products and support.

About our products

Do you want to buy a new electric motor for your boat or, for example, convert an existing boat to electric propulsion? In our web shop Everything you need to make your project a success is for sale. We offer the widest range of electric motors and propulsion systems for pleasure craft in the Netherlands, and at the most competitive prices. We also distinguish ourselves through our personal experiences with electrification of existing boats, and this also guarantees that your valuable purchase will also lead to a positive experience. You will regularly find this information in our web shop products in the offer, we post our own test reports in our blog page and we also offer complete sets from engine, battery, and all additional necessary equipment. Our homepage also features several reviews and ratings from satisfied customers; we'd be happy to add yours.

About WaterWorld Electronics

Enjoy electric boating with our inboard electric motors from WaterWorld. With these electric motors, you can cruise 100% electric or hybrid in complete peace and quiet. Suitable for motorboats and sailboats up to 10 meters in length or 7.5 tons. The WaterWorld motor is so efficient that it produces very little heat. Therefore, water cooling is not required! This simplifies installation, eliminates the risk of blockages, and keeps maintenance to a minimum. Once on the water, another major advantage becomes apparent: you can sail your boat for even longer. WaterWorld Electronics is a Dutch manufacturer of electric propulsion systems for water sports. The company is based in Oldemarkt, Overijssel, and develops and produces all motors, controllers, and battery systems entirely in-house, in the Netherlands. No imported basic components assembled afterwards: WaterWorld Engineering is responsible for the design and production from start to finish. The motors are brushless permanent-magnet synchronous motors, a type known for its high efficiency, low heat production, and quiet operation. The efficiency of a WaterWorld motor exceeds 85 percent. By comparison, a conventional diesel engine typically achieves 25 to 30 percent. You will notice this difference not only on your energy bill but also while boating: no heat emissions, no odor, and a noise level of approximately 45 dB, comparable to a normal conversational tone. All WaterWorld components communicate seamlessly with each other via a CAN data bus connection. The motor, controller, batteries, display, and throttle are designed as a single integrated system. This makes installation easier and operation more intuitive than systems assembled from separate parts from different brands.

Suitable for intensive professional use

The WaterWorld systems are also used in charter ships, tour boats, and work boats. The robust motors, which can also continuously deliver maximum power, make this possible. The same applies to the batteries, which can withstand up to 3,000 cycles while retaining virtually all of their energy.

WaterWorld Electronics — technical specifications

Inboard engines: specifications by model

WaterWorld supplies electric inboard motors in three power ratings: 4, 10, and 20 kW. All models operate on 48 volts, are air-cooled (no water cooling required), and are equipped with CANopen communication for seamless integration with other system components.
Specification WaterWorld 4.0i WaterWorld 10.0i WaterWorld 20.0i
Continuous power 4.4 kW 11 kW 20 kW
Peak power 4.8 kW 12 kW
Couple 27 Nm 64 Nm 115 Nm
Tension 48 V 48 V 48 V
Max. RPM 1,500 rpm 1,500 rpm 1,600 rpm
Max. current consumption 92 A 230 A 400 A
Weight 34 kg 76 kg 100 kg
Dimensions (L x W x H) 525 x 224 x 229 mm 681 x 290 x 271 mm 762 x 307 x 300 mm
Suitable for boat length up to 7 m up to 10 m up to 12 m
Suitable for boat weight up to 3,000 kg up to 7,500 kg up to 10,000 kg
Cooling Air Air Air
Regeneration Optional Optional Optional
Hybrid version Yes (4.0h) Yes (10.0h) Yes (20.0h)
The installation height of all models is exceptionally low, allowing for installation even under a flat floor. Mounting is achieved via adjustable legs on an existing engine bed, without any special modifications to the hull.

Pod motors: specifications per model

WaterWorld pod motors are intended for boats where a traditional propeller-shaft combination is less suitable, or for applications where a compact underwater installation is preferred. They are available in fixed and steerable versions and are suitable for both fresh and saltwater.
Specification WaterWorld 2.0p WaterWorld 3.5p WaterWorld 8.0p WaterWorld 18.0p
Continuous power 2.2 kW 3.8 kW 8.8 kW 18 kW
Tension 48 V 48 V 48 V 48 V
Max. RPM 1,500 rpm 1,500 rpm 1,500 rpm
Weight 16 kg 16 kg 35 kg
Dimensions (L x W x H) 496 x 108 x 255 mm 525 x 108 x 255 mm 652 x 150 x 288 mm
Suitable for boat length up to 6 m up to 7 m up to 9 m
Suitable for boat weight up to 1,500 kg up to 3,000 kg up to 5,000 kg
Assembly Fixed or steerable Fixed or steerable Fixed or steerable
Regeneration Optional Optional Optional
Water resistance Fresh and saltwater Fresh and saltwater Fresh and saltwater
(The exact specs of the Pod 18.0 are available upon request via our workshop.)

WaterWorld battery systems

WaterWorld lithium battery systems

The battery pack is the energy source behind your WaterWorld motor. WaterWorld Electronics supplies lithium iron phosphate (LFP) batteries specifically tailored to their own motor systems. LFP technology is known for its safety, long cycle life, and stable energy output. While conventional lithium batteries noticeably lose capacity after 500 to 800 charge cycles, the WaterWorld LFP battery achieves up to 3,000 charge cycles with minimal energy loss. Battery systems (48V, fully integrated):
Configuration Capacity Charging current Continuous discharge current Peak (2 sec) Dimensions (L x W x H) Weight
1x complete battery 3.4 kWh 60 A 100 A 200 A 395 x 253 x 212 mm 33 kg
2x battery complete 6.8 kWh 80 A 150 A 300 A 683 x 253 x 212 mm 61 kg
3x complete batteries 10.2 kWh 130 A 150 A 300 A
4x complete batteries 13.6 kWh 130 A 200 A 400 A 1,268 x 253 x 212 mm 119 kg
  Complete sets including charger:
Set Capacity Included charger
Inboard 4.0 set 6.8 kWh (1x 6800) 15 A charger
Inboard 10.0 set 10.2 kWh (3x 3400) 35 A charger
Inboard 20.0 set 13.6 kWh (2x 6800) 35 A charger
Extended range 20.4 kWh (3x 6800) 35 A charger
The batteries are directly compatible with the 48V motor system and communicate with the motor and the display via the integrated Battery Management System (BMS). The BMS continuously monitors the charge level, temperature, and health of each cell and intervenes automatically in the event of deviations. You can always see the current battery status on the on-board display.

WaterWorld accessories

A complete WaterWorld system consists of more than just the motor and battery. The accessories have been specifically developed for and by WaterWorld Electronics and connect seamlessly to the CAN bus system. WW-2212B Color Display The touchscreen color display shows real-time engine power, RPM, remaining range, battery voltage, and throttle position. The display is compact, water-resistant, and easy to read even in bright sunlight. Mounting is flexible thanks to the short mounting depth. Side-mounted throttle The WaterWorld throttle is ergonomically designed for mounting on the side of a helm or console. The position of the lever translates directly into precise speed control via the CAN connection, without delay or jerks. WW-2565 NMEA Connect module With the NMEA Connect module, you connect the WaterWorld system to your existing navigation electronics. Data on power, battery charge, and range are then available on a chartplotter or multifunction display. Flexible coupling 140 Nm For a low-vibration connection between the WaterWorld inboard engine and the propeller shaft, Robust-MT also supplies the corresponding flexible coupling with a maximum torque of 140 Nm.

A completely integrated system

All WaterWorld components (engine, controller, batteries, display, and throttle) work seamlessly together via a CAN data connection. You always have the necessary information on your display about the condition of the engine and batteries, and the remaining range. And when you use the complete system, you also get a 3-year warranty; peace of mind.

Hybrid boating with WaterWorld

Not everyone can or wants to go fully electric immediately. For those who wish to switch but want to retain their existing diesel engine as a backup, WaterWorld Electronics offers hybrid versions of all inboard models: the 4.0h, 10.0h, and 20.0h. In a parallel hybrid configuration, the electric WaterWorld motor works in conjunction with the existing diesel engine via a pulley system. You choose when to sail electrically and when to engage the diesel. In practice, this means: electric through the city center or nature reserve, and diesel on open water when the distance requires it. WaterWorld supplies standard hybrid kits compatible with Vetus diesel engines of 27, 33, and 42 hp. For saildrive installations, specific retrofit kits are available that, in many cases, enable the switch from diesel propulsion to a hybrid system within a single working day. Would you like to know if your current engine is eligible for a hybrid conversion? Please contact our workshop. We will assess the technical feasibility with you and prepare a customized quote.

Why WaterWorld Electronics?

One integrated system The motor, controller, batteries, display, and throttle were designed by the same engineers to work together. That sounds like a detail, but you notice it every day: the system starts immediately, responds predictably, and always provides a complete picture of what is going on via the display. Air-cooled, minimal maintenance Due to the air-cooled design, the entire water cooling system required by a diesel engine is eliminated: no impeller, no water pump, no cooling hoses. The number of moving parts is small, and maintenance is correspondingly low. Winterizing, as with an internal combustion engine, is not necessary. 45 dB: almost silence The noise level of a WaterWorld motor on board is approximately 45 dB. That is comparable to a conversation at normal volume. Anyone who has ever experienced that on the water will not want to take a step back. 3-year warranty on complete systems When purchasing a complete WaterWorld system (motor, batteries, charger, and DC distribution) via Robust-MT and having it installed in our workshop, a 3-year warranty period applies. A condition is that the system is inspected annually by our workshop. We would be happy to schedule that appointment for you.

Sustainable also means: 🇳🇱 Made in Holland

The WaterWorld systems are manufactured in our own country by the skilled craftsmen of WaterWorld Electronics. And therefore not in low-wage countries far away. And that means: no transport of products halfway across the world and a point of contact and service close by buy electric sloopSee our full range.

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