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SFC Energy EFOY 80/150 Fuel Cells EFOY 80 & EFOY 150

  • Max. output power: 75 W
  • Dimensions (L x W x H): 448 x 198 x 275 mm
  • Fuel cell weight: 6.5 kg
  • 100% reliable
  • Autonomous low maintenance
  • Environmentally friendly and quiet
  • Lightweight and compact
  • Remote surveillance
  • Reduced operating costs

EFOY 80 & EFOY 150

Product Overview

EFOY 80 & EFOY 150  

EFOY Fuel Cells are the ideal power generators for a wide range of stationary and mobile applications. They generate electricity reliably for weeks and months without user intervention. The EFOY direct methanol fuel cells are available as EFOY and EFOY Pro models with an output of up to 500 W depending on the power requirements and user requirements. Our EFOY and EFOY Pro models are designed for different application purposes. The EFOY models are designed for temporary applications with low operating hours and are used as a back-up power supply for grid-connected or solar-powered hybrid installations. The EFOY Pro series is ideal for continuous operation and can also be used in hybrid operation. You can operate your application completely autonomously with the EFOY Pro, compensate for low solar output and use smaller solar modules.

Remote monitoring with EFOY Cloud

EFOY Fuel Cells are often used in remote locations and require the option of secure remote access. The EFOY Cloud gives you access to your methanol fuel cells from anywhere so you can monitor continuous operation via laptop, tablet or smartphone. All you need for this is an Internet connection to your fuel cells. You can, for example, track the current operating status of each of your fuel cells, historical data or fill levels of the EFOY fuel cartridges. If necessary, configure battery parameters and receive the firmware updates completely automatically. The integrated alarm management informs you, for example, by email of upcoming fuel cartridge replacements or a battery voltage that falls below the threshold.

Extend the self sufficience with the EFOY Fuel Cartridges Manager

The Fuel Manager (FM) allows you to operate several EFOY fuel cartridges with one EFOY. Depending on the model, two, four or eight fuel cartridges can be simultaneously connected. The Fuel Manager automatically switches from the empty one to the next full fuel cartridge and ensures a long self sufficiency without user intervention.

Control and configuration via control panel or the EFOY app

The control panel in the EFOY makes it possible to easily operate the EFOY and the EFOY Pro Fuel Cell. With just a few clicks, you can view information about the current operation of the fuel cell, such as the average charge duration, the battery voltage, the current charging current as well as the fuel cartridge fill level. Battery parameters can always be adapted to special requirements. You can also access this data via Bluetooth or your EFOY app. All you need to do this is the EFOY Bluetooth adapter.

Optional accessories for EFOY and EFOY Pro1

EFOY Fuel Manager (FM)

The EFOY Fuel Manager makes it possible to operate 2, 4 or 8 fuel cartridges. Not compatible with EFOY Pro 12000 Duo. 

DuoCartSwitch DCS1

The DCS1 DuoCartSwitch allows the operation of up to four fuel cartridges. Only compatible with EFOY Pro 12000 Duo.

Fuel cartridge sensor

The fuel cartridge sensor is used to measure the methanol level in the fuel cartridge. It will indicate when the fuel cartridges need to be changed.


The modem and router are used for remote monitoring of the EFOY Pro Fuel Cells.

EFOY Bluetooth Adapter

The EFOY Bluetooth adapter makes it possible to control the fuel cells via the EFOY app. Not compatible with the EFOY Pro 12000 Duo.

M28 Adapter

An interim attachment is used to connect the M28 fuel cartridges to the fuel cell or to the Fuel Manager.



General Technical Data for EFOY Fuel Cells EFOY 80 EFOY 150
Nominal voltage Lead: 12 V / 24 V (Lead-Gel, Lead-Acid, AGM) LiFePO4: 12.8 V / 25.6 V 
Acceptable battery types  Lead: 2 V cells: 6S (12 V) und 12S (24 V) LiFePO4: 3.2 V cells: 4S (12.8 V) und 8S (25.6 V)
Consumption4 0.91 / kWh
Connectable cartridges  1 (up to 8 with EFOY Fuel Manager)
Length fuel cartridge connector 75 cm 
Weight  6.5 kg 6.9 kg 
Dimensions (L × W × H) 448 x 198 x 275mm
User interface  Push button and LED optional 4,3” TFT Display optional Bluetooth adapter – EFOY App optional Ethernet connection to EFOY Cloud
Data interface  RJ-12 socket (CAN & RS232) for the use of accessories RJ-45 socket (Ethernet)
Communication protocol  MODBUS TCP; clear text protocol (SIO commands) Secured MQTT protocol to EFOY Cloud
Electrical interface  4-pin Plug for EFOY charging cablePower: Positive (+) and negative (-) terminals: 4 mm² (AWG 12)Sense: Positive (+) and negative (-) terminals: 0.75 mm² (AWG 20) 
Electrical interface for EFOY accessory Positive (+) and negative (-) terminals: min 0.75 mm² (AWG 20) / max 2.5 mm² (AWG 14) Available voltage: battery voltage / Max. current: 2 A (external fuse needed
Noise level5 at 1 m  < 44 dB (A) < 47 dB (A)
Minimal installation space (L x D x H) EFOY Fuel Cell only: 510 x 320 x 290 mm
Inclination along the roll axis  permanent: max. 35°
Inclination along the lateral axis  permanent: max. 35°
Operating temperature -20 °C to +40 °C
Start-up temperature  EFOY: +3 °C to +40 °C / +37 °F to +104 °F
Storage temperature  +1 °C to +50 °C / +34 °F to +122 °F
International Protection (IP-Class) IP 21
Altitude From approx. 2000 m above sea level there is a reduction in performance possible
Warranty 24 months within 3.000 operating hours

1 All performance data apply to the connection of the charging cable to the EFOY. 

2 The output power varies by ± 10% and decreases with the operating hours, depending on the installation situation and the operating conditions. 

3 Operation still possible after 3000 h, no guaranteed power output. 4Effective consumption depends on operating conditions and hours. 

5 Different noises may occur due to different components. 

6 The output power may be reduced at temperatures above +35 °C / 95 °F (EFOY) and +42 °C / 108 °F (EFOY Pro). At temperatures below 0 ° C, charging lithium batteries (LiFePO4) may not always be possible. Follow the instructions from the battery manufacturer. 

7 Warranty conditions: “Warranty_EFOY 80_150_EFOY_Pro 900_1800_2800” apply 

Selection Table

  12 V  24 V 12 V 24 V
Max. output*  40 W 40 W 75 W 75 W
Output Power2 within 3.000 hours 24 W  21 W  45 W 43 W
Output Power2 within 6.000 hours ---3 ---3 ---3 ---3
Max. Charging current @ 10.5 V 3.8 A - 7.1 A -
Max. Charging current @ 21.0 V - 1.9 A  - 3.6 A
Recommended minimal battery capacity lead batteries  40 Ah 60 Ah  20 Ah 30 Ah
Maximum adjustable battery capacity lead batteries 800 Ah 400 Ah  800 Ah  400 Ah
Recommended minimal battery capacity LiFePO4 batteries  20 Ah 10 Ah  30 Ah  15 Ah
Maximum adjustable battery capacity LiFePO4 batteries 600 Ah 300 Ah 600 Ah  300 Ah
Quiescent consumption  0.5 W 0.5 W 0.6 W 0.6 W

10 litres

28 litres

60 litres


8.4 kg

23.4 kg

55 kg

Nominal Capactity 

11.1 kWh

31.1 kWh

66.7 kWh

Autonomy @ 50W 

222 h 

622 h 

1320 h 


Only in upright postion 

In upright position and on the side, with valve upside 

Only in upright position


230 x 193 x 318 mm 

370 x 285 x 395 mm With M28 Adapter: 370 x 285 x 425 mm

 340 x 390 x 670 mm 

 *M28 adapter required

Technical Illustration

  • EFOY Control Panel EFOY Control Panel
  • Direct methanol technology Direct methanol technology
  • Remote monitoring with EFOY Cloud Remote monitoring with EFOY Cloud
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