EFOY fuel cells

Now available online & in stores

With the EFOY fuel cell you always have your environmentally friendly power generator with you – in your motor home, on the boat, or in your shed or cabin.

Technical data Buy now

Your freedom. Your power.

With the EFOY fuel cell you always have your own compact power generator with you and are completely independent off the power grid. The EFOY fully automatically recharges all common 12 or 24 V battery types reliably, quietly and in an environmentally friendly way. Whether in a motor home, on a boat or in a garden shed, or cabin, you decide where the EFOY will be used.

More about how it works


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Lots of power in a small space.

Weighing only about 6 kg (13.2 lbs) and 27.5 cm high, the EFOY is a space miracle. Thanks to its compact design, the EFOY can be installed anywhere to save space.

More about installation

Overview EFOY fuell cells

35-60 Ah / day
Power supply for long weekends

EFOY Li 70

Nominal capacity
70 Ah

Nominal voltage
12.8 V

Weight
11.8 kg

Dimensions L x W x H
269 x 175 x 190 mm

Technical data

35-60 Ah / day
Power supply for long weekends

EFOY Li 105

Nominal capacity
105 Ah

Nominal voltage
12.8 V

Weight
16.3 kg

Dimensions L x W x H
368 x 175 x 190 mm

Technical data

55–120 Ah / day
Comfort vacation in any season

EFOY 80

Maximum power
40 W

Max. Load capacity / day
80 Ah

Nominal voltage
12 V / 24 V

Weight
6.5 kg

Dimensions L x W x H
448 x 198 x 275 mm

Technical data

55–120 Ah / day
Comfort vacation in any season

EFOY 150

Maximum power
75 W

Max. Load capacity / day
150 Ah

Nominal voltage
12 V / 24 V

Weight
6.9 kg

Dimensions L x W x H
448 x 198 x 275 mm

Technical data

120–200 Ah / day
Superior travel experience with high energy demand

EFOY Pro 2800

Maximum power
125 W

Max. Load capacity / day
250 Ah

Nominal voltage
12 V / 24 V

Weight
7.8 kg

Dimensions L x W x H
448 x 198 x 275 mm

Technical data

The ideal power supply for on the road

That ideal job for the EFOY fuel cell

Compact and lightweight

Fully automatic and maintenance-free

Environmentally friendly and quiet

Power in all weathers

No more sweating in the sun. The EFOY Fuel cell always produces power, unlike solar panels or wind generators, which means that even in bad weather, or during long periods of winter, you are always prepared. You can also combine solar with your EFOY Fuel cell for more options.

Completely worry-free!

The EFOY recharges your battery fully automatically and requires no maintenance to do so. It switches on when the battery needs recharging and switches off again when the battery is full, you only have to change the fuel cartridge when it’s empty.

For the sake of the environment

The EFOY generates environmentally friendly electricity. In a chemical process; only waste heat and water vapour with a small amount of CO2 are produced in addition to electricity. Therefore, the EFOY can be installed indoors without hesitation.

More about how it works

EFOY fuel cartridges

The fuel

EFOY fuel cells need our EFOY fuel cartridges to generate electricity. They contain high-purity methanol* and are a safety-tested system specially developed for EFOY fuel cells. The EFOY fuel cartridge can be changed in seconds.

Find out more

EFOY Hybrid Power –
The ideal combination

EFOY Hybrid Power is a perfectly matched energy package consisting of EFOY fuel cells as power generators and EFOY lithium batteries as power storage. The smart Battery Management System (BMS) of the EFOY lithium battery ensures intelligent communication between the fuel cell and battery.

More about EFOY Hybrid Power

Technical data for EFOY fuel cells

Our fuel cells are available in two power classes for different energy requirements.
You can find support with the selection of the right model in our Model check.

EFOY fuel cell EFOY 80 EFOY 150
Max. power 40 W 75 W
Nominal voltage 12 V/24 V 12 V/24 V
Connectable Batteries Lead acid, gel, AGM, LiFePO4, EFOY lithium battery Lead acid, gel, AGM, LiFePO4, EFOY lithium battery
Min. recommended battery capacity 40 Ah 60 Ah
Protection class IP 21 IP 21
Operating temperature -20 °C to +40 °C -20°C to + +40 °C
Dimensions L x W x H 448 x 198 x 275 448 x 198 x 275
Weight 6.5 kg 6.9 kg
Operating options Button on the device,
EFOY app with Bluetooth adapter,
Optional EFOY control panel OP3		 Button on the device,
EFOY app with Bluetooth adapter,
Optional EFOY control panel OP3

Find the model that suits you

Determine your energy requirements with our model check and find the right combination of fuel cell and battery for your needs.

To the model check

How to control the EFOY

You can control the fuel cell easily with the EFOY app on your smartphone or tablet. All you have to do is plug the Bluetooth adapter into the EFOY. In the app you can see all the information about your fuel cell and battery at a glance. Example: monitor the fill level of your fuel cartridge or the daily consumption by simply downloading the EFOY app from the App Store.

Google Play Store App Store

Where can the EFOY be installed?

There’s always a place for the EFOY. Due to its compact design it takes up little space and is also very light. We’ll show you where the EFOY can be installed in our installation area.

More about installation

Accessories

You can find the EFOY’s scope of delivery and optional accessories here.

To the accessories

EFOY fuel cells combined with solar

Of course, our EFOY fuel cells also work with other power generators. In combination with solar modules, for example, they only turn on when the solar module cannot deliver sufficient power due to bad weather (e.g. snow, overcast skies, standing in the shade, etc.).

EFOY fuel cell as range extender

Whether in the harbor, at the buoy or in a lonely bay. The EFOY fuel cell supplies your boat’s electric motor with power, thus not only increasing its range but also ensuring a reliable on-board power supply. For all autonomous sailors and boaters the perfect solution to set sail in an environmentally friendly way. E-motors suitable for the EFOY can be found here: ePropulsion

The best EFOY ever

The new generation of EFOY fuel cells has arrived. We will show you what we have improved and what’s new.

Find out

Find an EFOY dealer near you or buy the EFOY online!

Buy now!

EFOY testimonials

EFOY product overview

35-60 Ah / day
Power supply for long weekends

EFOY Li 70

Nominal capacity
70 Ah

Nominal voltage
12.8 V

Weight
11.8 kg

Dimensions L x W x H
269 x 175 x 190 mm

Details

35-60 Ah / day
Power supply for long weekends

EFOY Li 105

Nominal capacity
105 Ah

Nominal voltage
12.8 V

Weight
16.3 kg

Dimensions L x W x H
368 x 175 x 190 mm

Details

55–120 Ah / day
Comfort vacation in any season

EFOY 80

Maximum power
40 W

Max. Load capacity / day
80 Ah

Nominal voltage
12 V / 24 V

Weight
6.5 kg

Dimensions L x W x H
448 x 198 x 275 mm

Details

55–120 Ah / day
Comfort vacation in any season

EFOY 150

Maximum power
75 W

Max. Load capacity / day
150 Ah

Nominal voltage
12 V / 24 V

Weight
6.9 kg

Dimensions L x W x H
448 x 198 x 275 mm

Details

120–200 Ah / day
Superior travel experience with high energy demand

EFOY Pro 2800

Maximum power
125 W

Max. Load capacity / day
250 Ah

Nominal voltage
12 V / 24 V

Weight
7.8 kg

Dimensions L x W x H
448 x 198 x 275 mm

Details

Note: According to the CLP Regulation, methanol is categorised as a poisonous and easily flammable substance. For further information, please see the Safety Data Sheets in our downloads.