Forster FBS Series User manual

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INNOVATION.
ENGINEERING.
SOLUTION.
LITHIUM FBS-SERIE STANDARD
OPERATING INSTRUCTIONS
F12-020FBS
F12-050FBS
F12-100FBS
F12-100FBS1
F12-150FBS1
F12-200FBS
F12-300FBS
F24-050FBS
F24-100FBS
F36-100FBS

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OPERATING INSTRUCTIONS
F12-020FBS
F12-050FBS
F12-100FBS
F12-100FBS1
F12-150FBS1

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F12-200FBS
F12-300FBS
F24-050FBS
F24-100FBS
F36-100FBS

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TECHNICAL SPECIFICATIONS
DATA / ORDER NO.:
EAN
Capacity
Replaces lead-gel-AGM battery
Nominal voltage
Energy content
Operating voltage
Application in shunt circuit
Application in serial connection
Cell technology
Cell type
Charging programmes
End-of-charge voltage
Trickle charge
Maximum charging current
Recommended charging current
Max. discharge current / 3 sec.
Continuous discharge current
Battery shutdown
BMS Battery Management System
Remote monitoring with APP
Bluetooth
Protection Class
Cycles / longevity at 50% DoD
Cycles / longevity at 80% DoD
Cycles / longevity at 90% DoD
Charging temperature
THERMO CONTROL (TC)
Discharge temperature
Recommended storage temperature
Storage
Self-discharge
Connection
Arrangement of positive pole
Length
Width
Height
Mounting position
Weight
Warranty
Certification
F12-020FBS F12-050FBS F12-100FBS F12-100FBS1 F12-150FBS1 F12-200FBS F12-300FBS F24-050FBS F24-100FBS F36-100FBS
4251847300778 4251847300785 4251847300792 4251847300679 4251847301478 4251847301485 4251847301409 4251847300808 4251847300815 4251847300822
20Ah 50Ah 100Ah 100Ah 150Ah 200Ah 300Ah 50Ah 100Ah 100Ah
12V/40Ah 12V/100Ah 12V/200Ah 12V/200Ah 12V/300Ah 12V/300Ah 12V/300Ah 24V/100Ah 24V/200Ah 36V/200Ah
12.8V 12.8V 12.8V 12.8V 12.8V 12.8V 12.8V 25.6V 25.6V 38.4V
256Wh 640Wh 1280Wh 1280Wh 1920Wh 2560Wh 3840Wh 1280Wh 2560Wh 3840Wh
11.0V - 14.6V 11.0V - 14.6V 22.0V - 29.2V 33.0V - 43.8V
yes, max. 4 pieces of the same type possible yes, max. 4 pieces of the same type possible
yes, 24V, 36V and a maximum of 48V can be operated serially! yes, 24V, 36V and a maximum of 48V can be operated serially! yes, max. 48V no
Lithium LiFePO4 Lithium LiFePO4
PPC Prismatic-Power cells PPC Prismatic-Power cells
CCCV / IU / IUoU / lead-acid CCCV / IU / IUoU / lead-acid
14.0V - 14.6V 14.0V - 14.6V 28.0 - 29.2V 42.0 - 43.8V
13.3 - 13.8V 13.3 - 13.8V 26.6 - 27.6V 39.9 - 41.4V
20A / 60min 40A / 60min 100A / 60min 80A / 75min 100A / 75min 150A / 80min 200A / 75min 50A / 60min 100A / 60min 100A / 60min
10A 25A 50A 60A 60A 80A 100A 25A 50A 50A
68A 150A 350A 350A 350A 400A 450A 150A 350A 300A
30A 50A 100A 150A 150A 150A 200A 50A 100A 100A
8.5V 10.0V 10.0V 10.0V 10.0V 10.0V 10.0V 20.0V 20.0V 30.0V
integrated integrated
n/a yes yes
yes, built-in yes, built-in
IP54 IP67 IP67 IP54 IP54 IP54 IP54 IP54
>5000 >6000 >5000
>3500 >4000 >3500
>3000 >3000 >3000
0°C to +50°C 0°C to +50°C
n/a n/a
-20°C to +60°C -20°C to +60°C
-5°C to +25°C -5°C to +25°C
80 - 100% charged / when not in use, load battery every 6 months 80 - 100% charged / when not in use, load battery every 6 months
2-3% / month 2-3% / month
M5-bolt M8-bold M8-bold Car cone Car cone M8-bolt M8-bolt M8-bolt M8-bolt M8-bolt
front left front right front right front left front end right front left
180mm 197mm 318mm 355mm 355mm 485mm 520mm 318mm 485mm 520mm
76mm 165mm 165mm 175mm 175mm 170mm 268mm 165mm 170mm 268mm
166mm 174mm 215mm 190mm 190mm 245mm 220mm 215mm 245mm 220mm
any, standing, lying, on the side, upright, headfirst any, standing, lying, on the side, upright, headfirst
2.5kg 7.0kg 12.8kg 11.5kg 20.0kg 25.0kg 35.0kg 12.8kg 25.0kg 39.0kg
5 years 3 years
UN38.3 | MSDS | CE | RoHS UN38.3 | MSDS | CE | RoHS

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F12-020FBS F12-050FBS F12-100FBS F12-100FBS1 F12-150FBS1 F12-200FBS F12-300FBS F24-050FBS F24-100FBS F36-100FBS
4251847300778 4251847300785 4251847300792 4251847300679 4251847301478 4251847301485 4251847301409 4251847300808 4251847300815 4251847300822
20Ah 50Ah 100Ah 100Ah 150Ah 200Ah 300Ah 50Ah 100Ah 100Ah
12V/40Ah 12V/100Ah 12V/200Ah 12V/200Ah 12V/300Ah 12V/300Ah 12V/300Ah 24V/100Ah 24V/200Ah 36V/200Ah
12.8V 12.8V 12.8V 12.8V 12.8V 12.8V 12.8V 25.6V 25.6V 38.4V
256Wh 640Wh 1280Wh 1280Wh 1920Wh 2560Wh 3840Wh 1280Wh 2560Wh 3840Wh
11.0V - 14.6V 11.0V - 14.6V 22.0V - 29.2V 33.0V - 43.8V
yes, max. 4 pieces of the same type possible yes, max. 4 pieces of the same type possible
yes, 24V, 36V and a maximum of 48V can be operated serially! yes, 24V, 36V and a maximum of 48V can be operated serially! yes, max. 48V no
Lithium LiFePO4 Lithium LiFePO4
PPC Prismatic-Power cells PPC Prismatic-Power cells
CCCV / IU / IUoU / lead-acid CCCV / IU / IUoU / lead-acid
14.0V - 14.6V 14.0V - 14.6V 28.0 - 29.2V 42.0 - 43.8V
13.3 - 13.8V 13.3 - 13.8V 26.6 - 27.6V 39.9 - 41.4V
20A / 60min 40A / 60min 100A / 60min 80A / 75min 100A / 75min 150A / 80min 200A / 75min 50A / 60min 100A / 60min 100A / 60min
10A 25A 50A 60A 60A 80A 100A 25A 50A 50A
68A 150A 350A 350A 350A 400A 450A 150A 350A 300A
30A 50A 100A 150A 150A 150A 200A 50A 100A 100A
8.5V 10.0V 10.0V 10.0V 10.0V 10.0V 10.0V 20.0V 20.0V 30.0V
integrated integrated
n/a yes yes
yes, built-in yes, built-in
IP54 IP67 IP67 IP54 IP54 IP54 IP54 IP54
>5000 >6000 >5000
>3500 >4000 >3500
>3000 >3000 >3000
0°C to +50°C 0°C to +50°C
n/a n/a
-20°C to +60°C -20°C to +60°C
-5°C to +25°C -5°C to +25°C
80 - 100% charged / when not in use, load battery every 6 months 80 - 100% charged / when not in use, load battery every 6 months
2-3% / month 2-3% / month
M5-bolt M8-bold M8-bold Car cone Car cone M8-bolt M8-bolt M8-bolt M8-bolt M8-bolt
front left front right front right front left front end right front left
180mm 197mm 318mm 355mm 355mm 485mm 520mm 318mm 485mm 520mm
76mm 165mm 165mm 175mm 175mm 170mm 268mm 165mm 170mm 268mm
166mm 174mm 215mm 190mm 190mm 245mm 220mm 215mm 245mm 220mm
any, standing, lying, on the side, upright, headfirst any, standing, lying, on the side, upright, headfirst
2.5kg 7.0kg 12.8kg 11.5kg 20.0kg 25.0kg 35.0kg 12.8kg 25.0kg 39.0kg
5 years 3 years
UN38.3 | MSDS | CE | RoHS UN38.3 | MSDS | CE | RoHS

WWW.FORSTER-BATTERIES.DE6
GENERAL PRODUCT INFORMATION
The lithium iron phosphate battery (LiFePO4) is the safest battery in the lithium-ion battery family.
It is highly current resistant, universally applicable and has a low weight compared to lead, gel or AGM
batteries. In addition, the latest lithium iron technology offers a high degree of intrinsic safety, eliminating
the risk of explosion even under the most extreme conditions.
A 12V (14.6V) LiFePO4 battery consists of 4 single cells connected in series, each with a nominal voltage
of 3.2V. A 24V (29.2V) LiFePO4 battery has 8 cells connected in series, a 36V (43.8V) battery has 12 cells
connected in series and a 48V (58.4V) battery has 16 cells connected in series.
A built-in battery management system (BMS) additionally protects the battery cells from damage.
RESISTANT:
One major weakness of lead-acid batteries is sulfation. Sulfation occurs when a battery is rarely or never
charged, or is left in a half-full or empty state for long periods of time. This is one of the biggest advantages
of the new LiFePO4 technology. The battery's state of charge is not decisive for its performance and
lifespan. Whether full or empty, whether often or rarely in use, the LiFePO4 energy storage is extremely
resistant and robust.
EFFICIENT:
Countless applications in connection with the most modern solar and wind power plants increase the energy
efficiency. Compared to approx. 80% for lead-acid batteries, the efficiency is approx. 92% per charging cycle.
OPTIMISED:
You can save up to 60% in space and weight for the same capacity. Or you can pack more than twice the
capacity in the same space.
FLEXIBLE:
LiFePO4 batteries can be installed in a flexible position, which allows for new options in space utilisation.
Parallel arrangement is also possible to increase capacity. Any number of batteries of the same type can be
connected in parallel. For more voltage, you can connect up to 4 batteries (maximum 48V) in series.
SPECIAL FEATURES OF LIFEPO4
LITHIUM BATTERIES

ADVANTAGES
HIGH CYCLE STABILITY
Over 4,000 cycles at 80% DoD reduces your operating costs.
VERY SHORT CHARGING TIMES
Compared to conventional batteries, the lithium battery absorbs extremely high charging
currents in a very short time, thus making it ready for use again more quickly.
BUILT-IN COMPLETE PROTECTION / SAFETY FIRST
The integrated, intelligent battery management system (BMS) protects the battery and
ensures completely worry-free use.
EASY STORAGE
Thanks to extremely low self-discharge, the lithium batteries can easily be stored for more
than six months without sulfation and degassing.
LONG LIFE
The significantly higher number of cycles and the low maintenance requirements increase the
service life of lithium batteries by a factor of 7 compared to conventional batteries.
HIGH HEAT TOLERANCE
The lithium battery is a reliable power supply even at ambient temperatures above 60°C.
LIGHT WEIGHT
The lithium batteries are up to 75% lighter, resulting in enormous weight savings.
Double capacity = same space = half the weight
BLUETOOTH MEASURING SHUNT
Optionally, all our FORSTER X-series batteries are available with a 500A Bluetooth measuring
shunt which allows to display the exact charge level via app.
COLD RESISTANCE
The extended cold resistance of the FORSTER X-series allows the batteries to operate at
temperatures as low as -20°C.
INSTALLATION
Our FORSTER X-series batteries can be installed and operated in any position.
THERMO CONTROL (TC) F12-100FBSH only
Specially designed for installation in non-heated areas or an external battery compartment.
The Thermo Control battery has a computer-controlled cell preheating system that auto-
matically monitors the battery cells and allows charging down to -30°C.
MULTI-LAYER-HEAT SYSTEM (MLS) F12-100FBSH only
Unique system for even and rapid heating of the prismatic lithium cells. By placing heating
film plates between the cells, heating is
uniform, fast and controlled.
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BATTERY MANAGEMENT SYSTEM (BMS)
A battery management system monitors and controls the individual cells of a battery and protects them from
damage.
Key features of a battery management system:
OVERLOAD PROTECTION:
The BMS switches off the battery outputs in case of overload to protect the cells. At this point, the battery
has no voltage; after the consumer has finished, the battery unlocks itself.
DEEP DISCHARGE PROTECTION:
Each cell is individually monitored for deep discharge. If the battery outputs are switched off as a result, they
can only be released again by a charging process.
Attention: The BMS protects the cells against deep discharge when in active use. However, a switched off,
empty battery can damage itself over a longer period of time due to the low but existing self-discharge of
3%/month!
Tip: A battery that has been completely discharged should be recharged as soon as possible!
Note: Small consumers such as alarm systems, relays, standby systems or similar also consume capacity and
discharge your battery. If the battery is not used for a long time, make sure that it is disconnected from the
system by disconnecting the plus pole.
OVERVOLTAGE PROTECTION:
LiFePO4 battery cells must not be charged above 3.65V/cell and 14.6V/battery, otherwise the cells will be
destroyed by overvoltage. Only suitable chargers with a final charging voltage of 14.6V may therefore be
used to charge LiFePO4 batteries. Although the BMS protects the cell from overcharging, it must itself
absorb and burn the current. This is possible for a short time, but not a permanent state. A permanently too
high charging current above 14.6V will destroy the BMS!
ACTIVE CELL BALANCING:
The so-called balancing ensures that each individual cell is charged to the maximum final charging voltage of
3.65V/cell. This is important when the battery capacity is used to the maximum. If the cells are completely
empty, they may drift slightly and become unequal. This condition cannot be equalised by normal charging.
As a result, the battery would have less and less capacity over time. The built-in active balancer helps by
balancing the cells at all times. The active balancer ensures maximum efficiency regardless of the battery's
state of charge.
CHARGE CONTROL:
The BMS monitors and controls all parameters of a reliable and safe charge at all times. If problems occur,
charging is blocked by switching off the battery outputs to protect the battery.
TEMPERATURE PROTECTION OF THE CELLS:
All LiFePO4 cells in the battery are individually monitored by a temperature sensor at all times. If the battery
switches off because the cells have reached temperatures above 70°C, they must first cool down again until
the BMS releases the output again.
TEMPERATURE PROTECTION OF THE BMS:
The BMS itself is also permanently monitored by a temperature sensor. If the BMS reaches a temperature of
95°C, the battery outputs are switched off. The output can only be released again after the BMS has cooled
down.
For this purpose, no current may be drawn and not charged for 30 minutes!

BATTERY MANAGEMENT SYSTEM (BMS)
FORSTER standard lithium batteries have a standard BMS with all key control and charging functions built in.
To protect the battery cells, the BMS developed by FORSTER automatically takes over the following functions:
• Overload protection
• Deep discharge protection
• Overvoltage protection
• Active cell balancing
• Charge control
• Cell frost control, reduction of the charging current below 0°C
• Temperature cell monitoring
• Temperature BMS monitoring
• Compatible with common chargers, multi charge mode (MCM)
• Control electronics of the multi-layer heating elements (MLS) with the Thermo Control battery
The BMS is adapted to the respective battery capacity. By connecting 2 or more standard batteries in parallel,
the output power can be additionally increased.
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DISADVANTAGES OF FORMER ROUND CELLS:
• Loss of space and capacity due to large gaps
• Time-consuming assembly of individual cells due
to screw connections on both sides
• High cell levelling effort
• Higher weight due to assembly material
• More vulnerable with regard to the number of
screw connections
• Time-consuming cell replacement due to
complete disassembly of all cells for fault analysis
• High effort to adjust all cells after a repair
ADVANTAGES OF OUR PRISMATIC POWER CELLS:
• Maximum space utilisation
• Few cell connectors
• Less weight
• Fast assembly
• High safety and long life
• Low susceptibility
• Fast cell replacement
• No fire hazard
• No explosion!
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SUSTAINABLE. RESOURCE-SAVING
The superior performance of Forster batteries results from the use of Prismatic Power Cells.
In contrast to conventional batteries consisting of many small interconnected cells, FORSTER relies on a
small number of larger battery cells. The minus in complexity brings a plus in performance, service life and
safety. In addition, the modular structure consisting of Prismatic Cells and the innovative battery manage-
ment system makes it easier to adapt to individual requirements and to replace individual components.
PRISMATIC POWER CELLS

THE FORSTER SMART CONNECT APP
GENERAL INFORMATION
All information available in the battery, such as state of charge, incoming and outgoing current, voltage
and temperature, is transmitted in real time via the Bluetooth transmitter. The FORSTER app can be used
to visualise the parameters. Even the smallest FORSTER battery is equipped with this modern radio moni-
toring system.
DOWNLOADING AND INSTALLING THE APP
• The app is available for Apple and Android smartphones.
• Download the FORSTER app from the Google Play Store or the Apple App Store.
CONNECTING TO THE BATTERY
• Make sure you are close to the battery (maximum 5 m away) and Bluetooth is switched on your smartphone.
• When the app is activated, it automatically searches for FORSTER batteries. Detected batteries are
displayed on the screen. If your battery does not come up, press “Refresh”.
• Click on the battery you want to connect. The app automatically connects to the battery and displays the
battery data in real time.
Scans existing
batteries
ANDROID
Your phone requires Bluetooth 4.0 BLE
(Bluetooth Low Energy)
- You need Android 6.0 (or higher)
- Active distance <5.0 m
IOS
Supports iPhone 4S/5c/5/5S/6/6plus
(and higher)
- You need IOS 10.0 (or higher)
- Active distance <5.0 m
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INFORMATION AVAILABLE IN YOUR APP
• When connected, the main screen appears and indicates the battery's charge level, voltage, status and
remaining time.
• Sliding/swiping the main screen to the left will display the next screen. This screen shows information
about the incoming and outgoing current, the number of cycles, the voltage and the temperature.
• When the screen switches to the left, the information screen is displayed. This screen displays informa-
tion such as end time of charging.
TIPS
• Please install the latest version of the app.
• Android phones require Bluetooth4.0 with BLE (Bluetooth Low Energy) function.
• The app only supports one-to-one mode. (Bluetooth hardware function)
• The app only works for FORSTER lithium batteries, phone / tablet. Another device cannot be connected.
• Please make sure the battery has enough power and is running normally.
• If you want to use another phone to display the same battery, exit the app first.
More informationBasic information
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SAFETY GUIDELINES
Please follow these instructions and keep them within easy reach of the LiFePO4 battery for
future reference. Work on the LiFePO4 battery should only be carried out by qualified personnel.
While working on the LiFePO4 battery, please wear protective goggles and clothing.
If material from an opened battery, such as electrolyte or powder, comes into contact with the
skin or eyes, it must be rinsed off immediately with plenty of water. Then seek medical
assistance. Spillages on clothing should be rinsed out with water.
Explosion and fire hazard. The terminals of the LiFePO4 battery are always live. Therefore,
never place tools or objects on the LiFePO4 battery. Avoid short circuits, deep discharges or
excessive charging currents. Only use insulated tools when working on the battery.
In case of fire, use a class D fire extinguisher, foam or CO2 fire extinguisher.
If a LiFePO4 is discharged too deeply, the battery is damaged and can become dangerous.
Install a safety relay or a circuit breaker to avoid a deep discharge by silent consumers.
If a LiFePO4 battery is recharged after a deep discharge or overcharge, a harmful gas mixture
such as phosphate may be secreted.
Never attempt to open the LiFePO4 battery. The safely packaged electrolyte of the cells is
corrosive. If the battery casing is damaged, dispose of the battery according to the regula-
tions.
LiFePO4 batteries are lighter than conventional lead-acid or gel batteries, but they can still
become a projectile in the event of an accident if not properly secured!
Failure to follow the operating instructions when making unprofessional repairs will render the
warranty null and void.
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TRANSPORT INSTRUCTIONS
The battery is tested in accordance with the UN Manual of Tests and Criteria, Part III,
Subsection 38.3 (ST/SG/AC.10/11/Version 5).
For transport, the batteries belong to category UN3480, Class 9, Packaging Group II
and during transport these regulations must be complied with. This means that they must be
packaged for transport by road, rail and sea (ADR, RID & IMDG) in accordance with packag-
ing instructions P903 and
for air transport (IATA) in accordance with packaging instructions P965. The original packa-
ging meets these requirements.
DISPOSAL / RECYCLING
AUSLAUF-
SICHER
The recycling of batteries is encouraged.
Batteries marked with the recycling symbol must be returned to recognised recycling centres.
They can also be returned to the manufacturer by arrangement.
Only dispose of discharged batteries!
Insulate the pole connections to prevent short-circuits!
Batteries must not be disposed of in household or industrial waste.
LiFePO4 iron phosphate batteries are subject to disposal and recycling regulations that vary
by country and region.
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• Never use a damaged battery!
• Make sure that you have the right polarity when connecting!
• Ensure that the battery is securely fastened!
• Use pole grease on the pole connections!
• Make sure that the cable is thick enough!
• Avoid a short circuit and only use insulated tools when working on the battery!
MOUNTING:
Ensure that the battery is adequately fastened with a retaining strap or mounting bracket. Normally, the
LiFePO4 battery can be mounted in any position, unless specifically specified.
BATTERY CONNECTION:
The battery has M8 connection poles for screws or can be optionally converted to cone adapters. Depend-
ing on the application, the cones are available in aluminium (light) or brass (marine) as accessories..
NOTE:
Use pole grease during assembly to avoid arcing!
Tighten the screws with the correct torque (see technical data)!
Check the connection for tightness!
If you are already using a fuse in your system, it must be adapted to the battery's charging capacity,
as the battery can draw more current than your previous lead-acid, gel or AGM battery! In most cases,
increasing the fuse from 50A to 80A or 100A is sufficient.
INSTALLATION
BATT 1
(+) Plus
(–) Minus
12V CONNECTION / SINGLE BATTERY:
CHARGE
CONTROLLER
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BATT 1
BATT 2
BATT 3
BATT 4
BATT 1
BATT 2
BATT 3
BATT 4
Make sure that the connection is correct because of the uniform load
distribution!
Each individual battery must be fully charged in advance before the
first installation!
(+) Plus
LOAD
Minus output!
CORRECT WRONG
(–) Minus
(+) Plus
LOAD
CHARGE
CNTROLLER
(–) Minus
All batteries contribute equally
to the current into the load!
Any number of FORSTER batteries of the same brand, type, age, capacity and state of charge can be
connected in parallel to increase capacity.
12V PARALLEL CONNECTION OF SEVERAL BATTERIES:
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BATT 1 BATT 2 BATT 3 BATT 1 BATT 2
(+) Plus
(–) Minus
24V
(+) Plus
(–) Minus
36V
(+) Plus
(–) Minus
48V
A maximum of 4 batteries (48V) of the same brand, type, age, capacity and state of charge can be connec-
ted in parallel in series to increase the output voltage.
24V / 36V / 48V SERIAL CONNECTION OF SEVERAL BATTERIES:
Make sure that the connection is correct because of the uniform load
distribution!
Each individual battery must be fully charged in advance before the
first installation!
No 24V, 36V or 48V chargers can be used!
When the batteries are connected in series, be sure to observe the
charger connection diagram.
WARNING!
BATT 1 BATT 2 BATT 3 BATT 4
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WARNING!
Always use a battery disconnect device!
In case of an undervoltage shutdown, charge immediately!
Follow the safety guidelines and measures!
ATTENTION!
Only use chargers suitable for LiFePO4 cells with a maximum final charging voltage of 14.6V!
ATTENTION!
Even simple lead, gel, acid and AGM battery chargers can damage the LiFePO4 battery when first
connected!
ATTENTION!
Observe the max. charging current of your battery, which may not be exceeded at any time!
ATTENTION!
Stop the charging if the BMS stops charging and check the battery and charging parameters!
ATTENTION!
Disconnect the charger if it is not used for a longer period of time!
ATTENTION!
Only use LiFePO4 chargers approved or released by FORSTER to ensure the service life of your
battery!
ATTENTION!
Charge your LiFePO4 battery at a low state of charge of approx. 20% or after a shutdown due to
undervoltage within 15 days to ensure maximum service life!
ATTENTION!
Charge your battery before use!
When delivered, our batteries are approx. 80% charged. We therefore always recommend that a new battery
be fully charged before use. Please observe our specifications for parallel or serial connection of the batteries!
APPLICATION OF THE LIFEPO4 BATTERY
CHARGING
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1
1
12V / 24V OR 36V CONNECTION, SINGLE BATTERY
1
(+) Plus
(–) Minus
12V/24V/36V
LOAD
234
12V / 24V OR 36V CONNECTION OF SEVERAL BATTERIES IN PARALLEL
24V CONNECTION / 2 BATTERIES IN SERIES
Use two 12V LiFePO4 chargers for charging according to the connection diagram!
CHARGER CONNECTION DIAGRAM
1
(+) Plus
(–) Minus
12V/24V/36V
LOAD
(+) Plus
(–) Minus
24V
LOAD
ATTENTION!
No 24V charger can be
used!
The batteries connected
in series must each be
charged individually with
a 12V charger!
(+) Plus
(–) Minus
LADE-
REGLER
12V/24V/36V
LiFePO4
CHARGE
CONTROLLER
12V/24V/36V
LiFePO4
CHARGE
CONTROLLER
12V
LiFePO4
CHARGE
CONTROLLER
12V
LiFePO4
CHARGE
CONTROLLER
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36V CONNECTION / 3 BATTERIES IN SERIES
ATTENTION!
No 36V charger can be
used!
The batteries connected
in series must each be
charged individually with
a 12V charger!
1
(+) Plus
(–) Minus
36V
LOAD
2
(+) Plus
(–) Minus
3
(+) Plus
(–) Minus
36V CONNECTION / 4 BATTERIES IN SERIES
ATTENTION!
No 48V charger can be
used!
The batteries connected
in series must each be
charged individually with
a 12V charger!
1
(+) Plus
(–) Minus
48V
LOAD
2
(+) Plus
(–) Minus
3
(+) Plus
(–) Minus
4
(+) Plus
(–) Minus
Use four 12V LiFePO4 chargers for charging according to the connection diagram!
12V
LiFePO4
CHARGE
CONTROLLER
12V
LiFePO4
CHARGE
CONTROLLER
12V
LiFePO4
CHARGE
CONTROLLER
12V
LiFePO4
CHARGE
CONTROLLER
12V
LiFePO4
CHARGE
CONTROLLER
12V
LiFePO4
CHARGE
CONTROLLER
12V
LiFePO4
CHARGE
CONTROLLER
Use three 12V LiFePO4 chargers for charging according to the connection diagram!
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