SFC Energy EFOY 80 User manual

Thank you!
Congratulations on choosing an EFOY fuel cell from SFC Energy AG.
We hope you enjoy your new power supply. If you have any questions about installation or
operation, please contact your sales partner or the EFOY hotline.
Copyright by SFC Energy AG 2020. All rights reserved.
Specifications may change without prior notice. Revision from October 2020
Notes on safe operation
Read the operating instructions before commissioning the unit. For your
own safety, follow the instructions and warnings in these operating
instructions. Store the operating instructions near the EFOY fuel cell.
WARNING
The EFOY fuel cell is intended for operation in well-ventilated
environments and requires sufficient incoming air that is free of exhaust
gas. The device is to be protected against direct weather influences,
especially moisture penetration. The device generates exhaust gases that
must be ventilated to open air using the accompanying exhaust gas hose.
Always ensure sufficient ventilation.
Do not open the EFOY fuel cell. Do not open fuel cartridges and do not
refill them.
Transport in an upright position only.
Protect the EFOY fuel cell and fuel cartridges from heat and direct
sunlight. Observe the temperature specifications for operation and
storage in
S
ECTION
2.3.3
.
Store the EFOY fuel cell in a place protected from frost. For frost-free
operation at temperatures under 3 °C, leave a full fuel cartridge and
intact battery connected.
Do not smoke around the EFOY fuel cell or fuel cartridges. Keep sources
of heat and ignition away from the device and fuel cartridges.
The EFOY fuel cells and empty or partially emptied fuel cartridges are not
intended for use by persons (including children) with limited physical,
sensory or mental capacities or persons who lack experience and/or
knowledge unless they are supervised by a person responsible for their
safety or have received instructions from them on how the device is to be

used. Children must be supervised to ensure that they do not play with the
device.
Service and contact
SFC Energy AG
Eugen-Sänger-Ring 7
85649 Brunnthal
Germany
Hotline: [phone]
Toll-free number*: 00800 732 762 78
E-mail: [e-mail]
Web: www.efoy.com
*The toll-free number can be called free of charge from a landline telephone in the following countries:
Germany, Belgium, Denmark, France, Great Britain, Italy, the Netherlands, Norway, Austria, Sweden,
Switzerland and Spain.

Safety
Page 43
Contents
1Safety........................................................................................................................................................44
1.1 Explanation of signal words ....................................................................................................................... 44
1.2 Safety instructions for the EFOY fuel cell................................................................................................. 45
1.3 Safety instructions for methanol................................................................................................................ 47
1.4 Certificates ........................................................................................................................................................ 48
1.5 Proper use ........................................................................................................................................................ 49
1.6 Transportation and disposal ...................................................................................................................... 49
2Design and specifications...................................................................................................................50
2.1 Product contents............................................................................................................................................. 50
2.2 Connections of the EFOY fuel cell.............................................................................................................. 51
2.3 Specifications................................................................................................................................................... 51
2.4 Charging parameters..................................................................................................................................... 54
3Operating the EFOY fuel cell ...............................................................................................................56
3.1 Using the app .................................................................................................................................................. 56
3.2 Using the operating panel........................................................................................................................... 56
3.3 Using the button on the EFOY .................................................................................................................... 58
4Commissioning the EFOY fuel cell.....................................................................................................59
4.1 Initial commissioning..................................................................................................................................... 59
4.2 Operation........................................................................................................................................................... 60
5Maintaining and caring for the EFOY fuel cell................................................................................63
5.1 Changing the fuel cartridge ......................................................................................................................... 63
5.2 Cleaning the EFOY fuel cell.......................................................................................................................... 67
5.3 Changing the battery or working on the battery .................................................................................. 67
5.4 Firmware update............................................................................................................................................. 67
5.5 Refilling EFOY service fluid .......................................................................................................................... 69
6Remedying malfunctions ....................................................................................................................70
6.1 Malfunctions indicated by messages ..................................................................................................... 70
6.2 Malfunctions not indicated by messages.............................................................................................. 70
7Shutting down and storing the EFOY fuel cell................................................................................71
7.1 Shutting down the EFOY fuel cell............................................................................................................... 71
7.2 Storing the EFOY fuel cell ............................................................................................................................. 71
7.3 Activating transportation protection/carrying out the transportation protection procedure.. 72
8LED status overview.............................................................................................................................73
9Glossary ...................................................................................................................................................75
10 Software licenses of third-party suppliers used............................................................................78

Safety
Page 44
1Safety
1.1 Explanation of signal words
DANGER
Indicates a hazard with a high degree of risk which, if not avoided, will result in
death or serious injury.
Pay attention to the danger warning.
WARNING
Indicates a hazard with a medium degree of risk which, if not avoided, can result
in death or serious injury.
Pay attention to the danger warning.
CAUTION
Indicates a hazard with a low degree of risk which, if not avoided, can result in
minor or moderate injury.
Pay attention to the danger warning.
INFO
Indicates an action which can result in damage.
Pay attention to the information.
Includes further information and tips on using the EFOY fuel cell in an optimal
way.

Safety
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1.2 Safety instructions for the EFOY fuel cell
WARNING
Inadequate installation and attachment of the EFOY fuel cartridges and
EFOY fuel cell creates a risk of injury.
Attach the EFOY fuel cell and EFOY fuel cartridges in a safe and secure way.
CAUTION
Unapproved parts can damage the EFOY fuel cell. This creates a risk of injury.
Use only original accessories.
Information on installing the EFOY fuel cell and requirements on the installation area can be
found in the revision 10/2020 of the mounting instructions at www.efoy.com.
DANGER
Risk of electric shock!
The EFOY fuel cell is not waterproof. Penetrating water
connecting with electricity creates a risk of injury.
Ensure that no water can enter the EFOY fuel cell.
Choose an area protected from exposure to water for installing the
EFOY fuel cell.
Do not use the EFOY fuel cell if any part of it has been submerged in water. A
fuel cell which has been damaged by water is extremely dangerous.
Attempting to use the EFOY fuel cell can lead to fire or explosion. Notify SFC
Energy or your service partner immediately to have the EFOY fuel cell
examined and the affected functional parts replaced.

Safety
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Safety instructions for ventilation
WARNING
Exhaust gases from the EFOY fuel cell may contain harmful compounds.
Do not breathe in exhaust gases directly or for prolonged periods.
Use only the accompanying exhaust gas hose.
Using the exhaust hose, direct the exhaust gases from the installation area to
the open air.
WARNING
Blocked or congested ventilation openings prevent the required air supply and
removal.
The EFOY fuel cell may only be operated in a well-ventilated environment.
Ensure that the openings for the incoming and outgoing air are not blocked
by any objects.
Keep the environment around the EFOY fuel cell clean and free of gasoline,
flammable substances and other ignitable vapors and liquids.
Information on the requirements on ventilation can be found in the revision 10/2020 of the
/mounting instructions at www.efoy.com.
Safety instructions for the electronics and battery
DANGER
Risk of fire!
Incorrectly laid or sized cables can cause a fire.
Ensure that all connected lines have sufficient insulation and electric
strength.
Ensure that the contact points are protected from being touched.
Do not install any bare metal lines or contacts.
Allow only professional electricians to work on electrical systems.
Use only the accompanying EFOY charging cable.
The battery terminal which is not connected to the chassis is to be
connected first. The other connection is to be made to the chassis at a
distance from the battery and gasoline line.

Safety
Page 47
WARNING
Insufficient ventilation of the batteries results in a risk of explosion.
Avoid flames and sparks.
While charging the battery, ensure sufficient ventilation.
Follow the safety instructions of the battery manufacturer.
WARNING
Risk of fire!
Non-rechargeable batteries may not be charged with the EFOY fuel cell.
Use only battery types that correspond with the specifications.
1.3 Safety instructions for methanol
Safe and tested EFOY fuel cartridges contain methanol approved by SFC Energy AG. When
the EFOY fuel cell and EFOY fuel cartridges are used properly, there is no risk of coming into
contact with methanol.
DANGER
Risk of fire!
Methanol is highly flammable. Escaping methanol vapors can cause a
fire.
Do not smoke while changing an EFOY fuel cartridge and keep all sources of
ignition away.
Keep the area around the EFOY fuel cell and fuel cartridge clean and free of
gasoline and other sources of ignition.
Protect the EFOY fuel cell and EFOY fuel cartridges from temperatures over
50 °C.

Safety
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DANGER
Risk of poisoning!
Breathing in, touching or swallowing methanol can cause
poisoning.
Do not breathe in exhaust gases directly or for prolonged periods.
Do not touch leaked methanol. In small quantities, methanol evaporates
without residue in a ventilated environment.
Contact a doctor immediately in case of direct contact, an accident or if you
are feeling unwell. Show the doctor the fuel cartridge label or methanol
safety data sheet.
The storage and transportation of methanol are regulated by law. More information can be
found on the safety data sheets at https://www.my-efoy.com/safety-data-sheets/
1.4 Certificates
1.4.1 Declaration of conformity
The SFC Energy AG company (Eugen-Sänger-Ring 7, 85649 Brunnthal, Germany)
declares that the following devices comply with the regulations of EU Directives
2014/30/EU (electromagnetic compatibility), 2011/65/EU and 2015/863 (restriction on
the use of certain hazardous substances in electrical and electronic equipment
RoHS) and REACH Directive (EC) No. 1907/2006 REACH:
EFOY 80, EFOY 150
The following harmonized standards were applied: BS EN 61000 6-2:2005, BS EN
61000-6-3:2007 + A1:2011, FCC 47 CFR Part 15 and ICES-003, Issue 6.
1.4.2 Seals of approval
EFOY fuel cells have been tested for electromagnetic compatibility in accordance
with ECE Regulation No. 10 and approved for operation in motor vehicles:
Seals of approval: 10 R – 05 3266
EFOY fuel cells have been voluntarily submitted for testing by
TÜV SÜD Industrie und Service GmbH for compliance with the basic requirements
of DIN EN IEC 62282-5-100 (VDE 0130-5-100):2019-05/EN IEC 62282-5-100:2018
and labeled with the seal of approval for product safety.
1.4.3 Warranty
The warranty period begins with the purchase of a new EFOY fuel cell and only takes effect
following registration. Retain the purchase receipt in a secure place. Warranty service is
based on the warranty conditions of SFC Energy AG valid at the time of purchase for the

Safety
Page 49
respective country. Observe the warranty conditions accompanying the product or available
at www.efoy.com.
1.5 Proper use
EFOY fuel cells from the SFC Energy AG company are automatic charging devices for
12 V and 24 V lead batteries and lithium iron phosphate batteries (LiFePO4).
•Only batteries which comply with the specifications of the device (see SECTION 2.3) may be
charged.
•Only EFOY fuel cells with intact, undamaged housings may be operated.
•Use only undamaged original EFOY fuel cartridges.
•Permissible: Parallel connection of EFOY fuel cells for increasing the charging current.
•Not permissible: Serial connection of EFOY fuel cells for increasing the voltage.
•EFOY fuel cells are not intended for use as an emergency supply of power for medical,
life-sustaining or agricultural devices.
1.6 Transportation and disposal
Information on transportation can be obtained by calling the EFOY hotline.
WARNING
Risk of suffocation
from films and folding boxes.
Keep packaging and parts of packaging away from
children
.
The EFOY fuel cell is protected by packaging. All materials used are environmentally friendly
and recyclable. Dispose of the packaging and EFOY fuel cell in an environmentally
responsible way in accordance with the local regulations.
In accordance with EU Directive 2012/19/EU, EFOY fuel cells are registered under WEEE
Reg. No. DE 85008411.
Old devices: Old electronic devices may not be disposed of with household garbage.
Information on returning old devices can be obtained by calling the EFOY hotline.
Special waste: Dispose of EFOY fuel cartridges as special waste.

Design and specifications
Page 50
2Design and specifications
2.1 Product contents
The set contains the following: Operating instructions with warranty conditions
(1) EFOY
fuel cell
(2) EFOY
service fluid
(3) Exhaust heat elbow
(4) Insulated
exhaust gas hose
(5) Belt brackets
(6) Charging cable
(7)
External cover
(8) Exhaust heat tube
(9) Bluetooth adapter
(10) Fuel cartridge
holder, incl. belt
(11) Operating panel OP3 (optional)
A complete list of accessories and spare parts can be found at www.efoy.com.
Optional

Design and specifications
Page 51
2.2 Connections of the EFOY fuel cell
1
Exhaust gas hose connection with
protective cap
2
Fuel cartridge connection
3
Charging cable connection
4
Power connection for optional
accessories
5
Retainer for protective cap/factory
defaults
6
On/off/reset button
7
Ethernet connection (RJ-45 port)
8
Accessory connection (RJ-12 port)
9
Connection for exhaust heat diversion
10
Device type, serial number and MAC
address
11
Status LED
2.3 Specifications
2.3.1 12 V performance data1
EFOY 80
EFOY 150
Max. output power 40 W 75 W
Output power2after 3,000
operating hours
24 W 45 W
Max. charging current at
10.5 V
3.8 A 7.1 A
Recommended minimum
battery capacity of lead
batteries
40 Ah 60 Ah
Maximum settable battery
capacity of lead batteries
800 Ah
Recommended minimum
battery capacity of
LiFePO4 batteries
20 Ah 30 Ah
Maximum settable battery
capacity of LiFePO4
batteries
600 Ah

Design and specifications
Page 52
Quiescent power
consumption
42 mA
2.3.2 24 V performance data1
EFOY 80
EFOY 150
Max. output power
40 W
75 W
Output power2after 3,000
operating hours
21 W 43 W
Max. charging current at
21.0 V
1.9 A 3.6 A
Recommended minimum
battery capacity of lead
batteries
20 Ah 30 Ah
Maximum settable battery
capacity of lead batteries
400 Ah
Recommended minimum
battery capacity of
LiFePO4 batteries
10 Ah 15 Ah
Maximum settable battery
capacity of LiFePO4
batteries
300 Ah
Quiescent power
consumption
25 mA
2.3.3 General specifications of the EFOY fuel cell
Nominal voltage Lead: 12 V/24 V (lead gel, lead acid or AGM)
LiFePO4: 12.8 V/25.6 V
Permissible battery types Lead: 2 V cells: 6S (12 V) and 12S (24 V)
LiFePO4: 3.2 V cells: 4S (12.8 V) and 8S (25.6 V)
Consumption
3
0.9 l/kwh
Number of fuel cartridges
1
Length of fuel cartridge
connection
75 cm
Weight
6.5 kg
6.9 kg
Dimensions (L x W x H)
448 x 198 x 275 mm

Design and specifications
Page 53
Operation
At the device, using the EFOY app, using the operating
panel or via the EFOY cloud
Data interface RJ-12 port (CAN & RS232) for the use of accessories
RJ-45 port (Ethernet)
Communication protocol
MODBUS TCP; plain text (SIO commands)
Electrical interface 4-pin port for EFOY charging cable
Power: plus (+) and minus (-): 4 mm²
Sensors: plus (+) and minus (-): 0.75 mm²
Electrical interface for
EFOY accessories
2-pin port: plus (+) and minus (-): min. 0.75 mm²/max.
2.5 mm²
Available voltage: battery voltage, max. current 3 A
Sound pressure level
4
at
1 m
< 44 dB (A) < 47 dB (A)
Installation space (L x W x
H)
510 x 320 x 290 mm
Incline along longitudinal
axis
Continual: 35°
Incline along lateral axis
Continual: 35°
Operating temperature
5
-20 °C to +40 °C
Start temperature
+3 °C to +40 °C
Storage temperature
+1 °C to +50 °C
IP protection class
IP 21
Usage elevation
Performance may be reduced at approx. 2,000 meters
above sea level
Warranty
24 months (up to 3,000 operating hours)
1All performance data is based on measurement at the connection for the charging cable on the sides of the
fuel cell.
2The output power varies by ±10 % and decreases with the number of operating hours, depending on the
installation situation and operating conditions.
3Actual consumption depends on the operating conditions and operating hours.
4The sound pressure level will vary and depends on different components and operating conditions.
5At temperatures over +35 °C (EFOY), the output power may be reduced. At temperatures under 0 °C, it may
not always be possible to charge lithium batteries (LiFePO4). Observe the information from the battery
manufacturer.
All specifications obtained through testing under normal conditions. We reserve the
right to make changes to the specifications.

Design and specifications
Page 54
2.3.4 EFOY fuel cartridges
The M28 EFOY fuel cartridges and MT60 methanol tank are not suitable for use in vehicles.
M5
M10
M281
MT60
Volume
5 liters
10 liters
28 liters
60 liters
Weight
4.3 kg
8.4 kg
23.4 kg
51.1 kg
Energy capacity
5.6 kWh
11.1 kWh
31.1 kWh
66.0 kWh
Dimensions
(L x W x H)
190 x 145 x
283 mm
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
1An M28 adapter is required for the M28 EFOY fuel cartridge.
2.4 Charging parameters
2.4.1 Lead batteries (AGM, lead acid and lead gel)
12 V/24 V
factory default
Min.
12 V/24 V
Max.
12 V/24 V
Switch-on voltage
12.3 V/24.6 V
11.0 V/22.0 V
13.0 V/26.0 V
Switch-off voltage
14.2 V/28.4 V
13.5 V/27.0 V
14.7 V/29.4 V
Switch-off current
2.0 A/1.0 A
0.5 A/0.25 A
10.0 A/5.0 A
Absorption time
180 min
0 min
300 min
Capacity
1
---
20 Ah
400 Ah
Max. charging duration
24 h
0 h
120 h
Min. charging duration
30 min
30 min
180 min
Switch-on delay
60 sec
2 sec
300 sec
Battery protection
11.2 V/22.4 V
10.5 V/21.0 V
12.0 V/24.0 V
Required start voltage 9 V/18.5 V
Max. “charge now” voltage 13.2 V/26.4 V
Max. battery voltage
16.0 V/31.5 V
2.4.2 LiFePO4 batteries (lithium iron phosphate)
For optimum charging, we recommend using a LiFePO4 battery with
communication with the EFOY fuel cell, such as the EFOY Li 70 or EFOY Li 105.

Design and specifications
Page 55
Factory default
12 V/24 V
Min.
12 V/24 V
Max.
12 V/24 V
Switch-on voltage
12.6 V/25.2 V
12.0 V/24.0 V
13.4 V/25.2 V
Switch-off voltage
14.5 V/29.0 V
13.8 V/27.6 V
14.6 V/29.2 V
Switch-off current
2.0 A/1.0 A
0.5 A/0.25 A
10.0 A/5.0 A
Absorption time
180 min
0 min
300 min
Capacity
1
---
20 Ah
600 Ah
Max. charging duration
48 h
0 h
120 h
Min. charging duration
30 min
30 min
180 min
Switch-on delay
300 sec
2 sec
600 sec
Battery protection
11.0 V/22.0 V
10.5 V/21.0 V
12.5 V/25.0 V
Required start voltage
9 V/18.0 V
Max. “charge now”
voltage
13.4 V/26.8 V
Max. battery voltage
16.0 V/31.5 V
1Depends on the battery type and application. Larger battery capacities are possible if additional energy
sources are available (e.g. solar power).
2.4.3 EFOY Lithium Battery
factory default
Min.
Max.
Switch-on threshold
(charge level)
20% 5 % 50 %
Switch-off threshold
(charge level)
80 % 50 % 100 %
Battery protection
10 %
5 %
20 %

Operating the EFOY fuel cell
Page 56
3Operating the EFOY fuel cell
You can operate the EFOY fuel cell as follows:
•EFOY app (see SECTION 3.1).
•Operating panel (see SECTION 3.2).
•Buttons on device (see SECTION 3.3).
3.1 Using the app
The EFOY app is freely available from the App Store and Google Play.
The myEFOY function of the EFOY app is available starting with Android version 4.4 and iOS
8.0 for Bluetooth 4.0-capable devices.
More information can be found at www.efoy.com.
To use the myEFOY function, you will need the EFOY Bluetooth adapter and the current
firmware.
In the app, touch myEFOY.
Enter the serial number of your EFOY fuel cell.
For the initial commissioning, follow the EFOY app’s instructions. See SECTION 4.1.
Following the initial commissioning and deactivation of transportation protection, the main
screen will appear.
1
Overview of the EFOY fuel cell
2
Overview of the
EFOY fuel cartridge(s)
3
Overview of the battery
4
Switch to the EFOY fuel cell detail
page
5
Switch to the EFOY fuel cartridge(s)
detail page
6
Switch to the battery detail page
7
Menu
3.2 Using the operating panel
When you connect the EFOY fuel cell for the first time, the language must be configured.

Operating the EFOY fuel cell
Page 57
For information on connecting the operating panel, see SECTION 2.2
Select the desired language.
Follow the instructions on the operating panel for the initial configuration. See SECTION
4.1.
Following the initial configuration and deactivation of transportation protection, the main
screen will appear.
1
Overview of the EFOY fuel cell
2
Overview of the
EFOY fuel cartridge(s)
3
Overview of the battery
4
Switch to the EFOY fuel cell detail
page
5
Switch to the EFOY fuel cartridge(s)
detail page
6
Switch to the battery detail page
7
Menu
You can also connect the EFOY fuel cell to a computer via the
Accessory
connection (see SECTION 2.2). Use an interface adapter and a USB adapter for
this purpose.

Operating the EFOY fuel cell
Page 58
3.3 Using the button on the EFOY
The figure below shows the actions you can initiate with the button (see SECTION 2.2,NUMBER
6).
The LED status overview (see SECTION 8) also lists all other color codes.
The glossary (see SECTION 9) explains the various different operating modes and statuses of
the EFOY fuel cell.
Button operation procedure: One brief press (less than 1 second) switches between the
operating modes, and one long press (over 5 seconds) initiates a reset.

Commissioning the EFOY fuel cell
Page 59
4Commissioning the EFOY fuel cell
Requirement:
The EFOY fuel cell and fuel cartridge are installed. Should this not be the case, refer to the
steps for mounting, electrical connection and use of the EFOY fuel cell and fuel cartridge in
the revision 10/2020 of the mounting instructions which you can download from
www.efoy.com.
4.1 Initial commissioning
During the initial commissioning, the following required and recommended settings must be
made:
Battery type (required)
Battery capacity (required)
Fuel cartridge configuration (recommended)
Deactivation of transportation protection (Required in order to start operation. If only
settings are to be made, transportation protection can remain active.)
4.1.1 Configuring a battery
When a new battery is connected, it must be configured. Select the battery type (lead or
lithium iron phosphate) and the voltage (12 V or 24 V).
CAUTION
Only lithium batteries of type “LiFePO4” with a rated voltage of 12.8 V or 25.6 V
and a built-in battery management system (BMS) can be recharged.
Observe the charging information from the battery manufacturer.
4.1.2 Configuring the fuel cartridge
For an accurate indication of the fuel cartridge fill level, the connected fuel cartridge type
must be selected.
The fill level of the fuel cartridge can be adjusted manually if a partially filled fuel cartridge
is connected.
4.1.3 Deactivating transportation protection
The EFOY fuel cell is delivered with transportation protection activated.
This condition prevents frost damage during transportation, among other things.
If only settings are to be made to the device, transportation protection can remain activated.