Questions and answers

The EFOY Fuel Cell converts chemical energy into electrical energy without any interim stages, moving parts or much loss of efficiency. The underlying principle is an electrochemical process that is also known as "cold combustion". It is in principle the reversal of electrolysis. The EFOY Fuel Cells are based on DMFC (Direct Methanol Fuel Cell) technology. They generate power by using methanol provided in a fuel cartridge, in combination with oxygen from the air. Methanol is directly converted into power by the fuel cell. By products in the electromechanical process, include waste heat, water vapour and a small amount of carbon dioxide. Thus, a fuel cell is not an energy storage devise but an energy generating devise. For more Information:
Operating principle

The EFOY Pro Fuel Cell is a fully automated battery charger that is quiet, simple and environmentally friendly, operating as a power generator in regions, where no grid connection is available, but a high power demand is needed. In off-grid industrial applications, that are not connected to the grid, the EFOY Pro Fuel Cell delivers reliable energy, in every weather condition – for security and surveillance, traffic regulation, remote sensors, etc.

The EFOY Pro Fuel Cell has been designed and developed for commercial and professional operation.

The EFOY Pro Fuel Cell converts the fuel in the fuel cartridge direct into electrical current. Thanks to this direct conversion, which is performed with no moving parts, silent and environmentally friendly, the fuel cell is extremely efficient, clean and environmentally friendly.

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Yes. A lot of your customers do this. The fuel cell switches on automatically when there is insufficient sun available for the solar energy system. Our Partners will assist you planning and implementing your projects.

SFC has already sold more than 60,000 EFOY Fuel Cells, which are in use day in, day out.

Use the Energy Calculator on our website or ask our Service Team for the ideal energy solution that suits your demand.

Advice & Contact

energy calculator

The EFOY Pro Fuel Cell meets the highest quality standards. We guarantee it. For more details go to warranty terms.

The purchase date of the new fuel cell on the invoice and its registration with SFC determine the start of warranty.

Yes. We can repair your fuel cell at our location in Brunnthal near Munich or in our subsidiary in Canada, when necessary.

Service center

No. The unit is not allowed to be opened by unauthorized persons.

Contact

Repairs can generally be performed within a few working days, plus the time required for transportation and the time until the quotation is approved.

A new update is recommended because the fuel cells are being continuously improved and we would want you to benefit from these improvements.

Firmware Updater

Service fluid / Recovery fluid is delivered with your EFOY Pro Fuel Cell. Thanks to SFC’s patented water recovery system, fluid is recovered in a closed circuit. Over a long period of operation with high external temperatures a part of this fluid may evaporate, and the fuel cell will indicate that it requires service fluid / recovery fluid. It is recommended to always have a bottle with you. Never fill up more than one bottle, and only when the fuel cell indicates that it really needs it (via the control panel).

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The EFOY Pro 800 / 800 Duo / 2400 / 2400 operates up to 35 ° of the longitudinal axis and up to 20 ° of the transverse axis continuously. The EFOY Pro 12000 Duo allows a permanent inclination of 10 ° during operation.

The fuel cell will switch off and will report an error when switched back on again. Please follow the instructions on the display.

EFOY Fuel Cells can be operated in a temperature range from -20 °C to +40 °C. EFOY Pro Fuel Cells are even designed for temperatures up to +50 °C. Should you require a power source to operate under more extreme conditions please contact us.

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User Manual

Operation up to +50 °C is guaranteed. If this temperature is exceeded, the unit interrupts the charge function and starts once more fully automatically once the temperature falls. This prevents damage to the fuel cell. Should you use the fuel cell at high temperatures for long periods of time, please contact us.

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The fuel cell has an intelligent automatic frost-protection mechanism. It keeps itself warm when temperatures fall below 3 °C when it is connected to a functioning battery and has a supply of fuel.

The fuel cell requires approx. 5 -10 litres of methanol for dedicated frost protection mode during a five-month winter period in Central Europe.

If the fuel cell freezes despite all precautions, allow it to thaw switched off in a warm environment over a period of approx. 24 hours before putting it into operation. Please note that a fuel cell’s efficiency may decrease when allowed to freeze repeatedly.