ULTIMATRON FRANCE SMART BMS Series User manual

lNSTRUCTlONS FOR USE
SMART BMS SERlE 12.8V

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Dear Customer,
Congratulations on the purchase of your battery. We invite you to
read very carefully the following instructions presented in your user
manual in order to prevent and avoid possible damage when using
your battery. Any damage that may be caused by disregard of the in-
structions and advice for use will not be covered by our warranty and
we decline any responsibility.

Safety rules 11
2.1 General rules 11
2.2 Identification 11
2.3 Elimination 12
2.4 Important notes 12
1.1 General information
1. 2 Product characteristics
1.3 BMS(Battery Management System)
INSTRUCTIONS FOR USE
CATALOG
Product description 06
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Installation of the battery 12
3.1 Verification 13
3.2 The installation conditions 13
3.3 Debug 13
3.4 Protection against short circuits 13
3.5 Battery Orientation 14
3.6 Storage 14
Use of the battery 15
4.1 Charge and discharge 15
4.2 Charging voltage 16
4.3 Cell voltage to « allow discharge » 16
4.4 Minimum temperature to « allow charging » 16
4.5 Conditions for series and parallel connection 16
Technical support 16
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1.1 General information
This user manual was created by Ultimatron-France and contains important
information relating to the proper care and maintenance of your lithium battery.
This manual only applies to Ultimatron lithium battery products. It does not apply
to other lithium batteries or chemistries. Please read through the guide in detail
before installing and using your new lithium battery. Reading this guide in its
entirety will help you achieve high performance and a longer life from your
lithium batteries. Should you have any questions concerning safety precautions,
installation or the use of your Ultimatron lithium battery, please contact us:
Email: [e-mail]
Online chat is available 24/7 on our website www.ultimatron-france.fr
Easy replacement of the existing battery
The dimensions of the case are identical to the most common batteries such as
AGM, lead-acid or GEL batteries. Existing pole terminals can also be used with
round poles. No need to replace the battery holder or change the charge
structure.
Performance and effi ciency
Ultimatron LiFePo4 batteries can directly store more than 9 6 % of the
energy supplied. Available capacity is fully used with the same output voltage.
Lithium Iron Phosphate (LiFePO4) batteries are safe to use indoors and
outdoors. However, as with any electronics, safety measures must always be
taken. Please follow the instructions within this user manual for safe handling
and operation of your Ultimatron lithium batteries.
1 . Product description
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BMS (Battery Management System)
An internal BMS (Battery Management System) to protect the battery from
misuse. The BMS protects against over-charge, over-discharge, low-
temperatures, high-temperatures, short-circuits, high-voltage and low- voltage.
The BMS also helps in balancing the individual cells.
Various application
The fi elds of application of lithium batteries are diverse, especially for station-
ary or mobile use. In particular mobile homes, solar, electric boats, electric
scooters, golf cars or even electro mobiles / wheelchairs and cleaning ma-
chines are more and more frequently equipped.
Monitoring via Bluetooth
Thanks to the integrated and practical Bluetooth interface, the battery status
can be checked at any time using your smartphone or tablet ( Android or IOS) .
You have all the important data on your battery at your fi ngertips without
other wired battery monitors.
Battery Charging
It does not need to wait for the battery to be fully charged. The Ultimatron
LiFePo4 battery charges up to 1 0 times faster than conventional lead batter-
ies. Existing charge controllers or chargers can also be used in the installation.
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Environmental- friendly
Lead- acid batteries contain a large amount of heavy metal- lead, which pro-
duces waste liquid, while lithium iron phosphate batteries do not contain any
heavy metals, and there is no pollution in production and use
High discharge current
High discharge performance without voltage drop for large consumers such
as coff ee machines and air conditioning systems
Long service life
Maximum service life with more than 3000 cycles, even with regular deep dis-
charge
Light weight
The volume of the lithium battery of the same capacity is 2 / 3 of the volume of
the lead-acid battery, and the weight is 1/3 of the latter.
LiFePO4 100Ah lithium battery replaces a 200Ah lead battery
Thanks to maximum usable capacity
High performance traction
Especially for mobile or stationary use with the highest requirements
1.2 Product characteristics
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Motorhomes and caravans
Photovoltaics, solar systems and renewable energies
High performance traction
Fishing, electric boat engines and depth sounders
Emergency power supply and Uninterruptible power supply ( UPS)
Mobile homes and leisure
1.3 BMS( Battery Management System)
It is an electronic system allowing the control and the charge of the diff erent
elements of a storage battery. The BMS built into each battery ensures that
the battery is protected from improper handling. It switches the battery in
case of undervoltage or overload, and turns on automatically as soon as the
problem is fixed.
The important significance of a battery management system (BMS)
Important facts:
A LiFePO4 cell breaks down if the cell voltage drops below 2.5V.
(Note: Sometimes recovery is possible by charging :
- Connect the same model of battery to charge in parallel to wake up the bat-
tery.
- Use a charger without voltage detection to charge with a low current less
than 0.1 C.).
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Low self-discharge
The self- discharge rate of fully charged Li- ion stored at room temperature for
1 month is about 3%
Flexible use

A BMS is therefore essential to avoid damaging the lithium batteries. When
the system is not in use, damage due to deep discharge can occur when
small loads ( such as alarm systems, relays, standby current of certain loads,
reverse current fl ow from chargers of battery or charge controllers) slowly
discharge the battery. If you are unsure of a residual current draw, discon-
nect the battery by opening the battery disconnect switch, removing the
fuse ( s) , or disconnecting the positive terminal on the battery when the
system is not in use.
A discharge current is particularly dangerous if the system has been com-
pletely discharged and shut down due to a low cell voltage. After a cut- off due
to a low cell voltage, a reserve capacity of approximately 5 Ah per 1 0 0 Ah of
battery capacity remains in the battery. The battery will be damaged if the re-
maining reserve capacity is removed from the battery. A residual current of
10mA, for example, can damage a 200Ah battery if the system is left in the dis-
charged state for a long period.
The additional functions of a BMS are:
Protection of the cell against undervoltage by cutting the load over time.
Protection of the cell against overvoltages by reducing the charging current
or by stopping the charging process.
System shutdown in case of overheating.
Battery charging is stopped at low temperature.
2 A LiFePO4 cell will fail if the voltage across the cell exceeds 3.65V.
3 The cells of LiFePO4 battery do not automatically compensate each other at
the end of the charge cycle.
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Follow the instructions for safe use.
Follow the instructions on the battery and in the user manual.
Warning. Follow the instructions.
Note the temperature.
Fire, open light and smoking prohibited! Avoid sparks when han-
dling cables and short circuits.
Not waterproof.
This product or parts of this product may be recycled.
Conformity mark.
2.1 General rules
Please note these instructions and keep them! Make sure it is near the LiFe-
PO4 lithium battery.Work on the LiFePO4 lithium battery should only be carried
out by a special- ist.LiFePo4 lithium batteries are a bit heavy.
In the event of an accident, they can become bullets! Make sure to fix it correctly
and firmly, and always use suit- able transport equipment. Handle lithium
batteries with care.
Always wear protective gear when handling batteries.Use a wrench with a rubber
coated handle.Do not place any objects on top of batteries.Do not place batteries
on a metallic surface.Check that all cables are in good condition.Make sure all
cable connections are properly tightened.
Install and remove batteries using the lifting handles provided.Keep sparks,
flames and metal objects away from batteries.Have Ultimatron MSDS on the
premises.
Have a fire extinguisher of the following type: a foam extinguisher, CO2, ABC
dry chemical, powdered graphite, copper powder or soda (sodium carbonate) on
the premises.
2.2 Identifi cation
2 . Safety rules
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2.4 Important notes
Never expose to direct sunlight. Protect from heat.
The LiFePO4 battery should always be dry and kept clean if possible.
Avoid any type of damage, such as falling, drilling or similar damage. (Risk
of short circuit) .
Note the positive (+) and negative (-) poles on the LiFePO4 battery and pay
attention to the correct polarity.
Pay attention to the correct assembly.
Do not short-circuit the LiFePO4 battery.
Do not open the LiFePO4 battery without consulting Ultimatron.
Make absolutely sure that the LiFePO4 battery is not connected with the op-
posite polarity. If the battery is not connected correctly, the BMS will be
irreparably damaged and must be replaced by a new BMS. This is not a war-
ranty case.
Batteries marked with the recycling symbol must be returned
to recognized recycling centers. After consultation, they can
also be returned to the manufacturer. Batteries are not al-
lowed in household or industrial waste.
3 . Installation of the battery
2.3 Elimination
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3.1 Verification
After receiving the LiFePO4 battery, please check if the device has been dam-
aged in any way ( e. g . transportation) . In this case, please do not put the
device into operation and contact the seller.
3.2 The installation conditions
As long as the battery holders are already available and suitable, they can
continue to be used. Make sure that the LiFePO4 battery is installed and fixed
so that it cannot move back and forth during use (tension the strap).
3.3 Debug
Due to variations in operating temperature and charge- discharge rate, the
cycle capacity may be diff erent from the nominal capacity. Do not disassem-
ble the battery without authorization from the supplier. Parallel and series are
acceptable. In parallel, it can accept 10 parallels. In series, it can accept up to 4
series. The series and parallel structure can accept up to 4S4P.
The operating temperature:
Discharge temperature: -20 ~ 60°C
Storage temperature: -5 ~ 35°C
Charge temperature:
The model with Heating film: -20 ~ 55°C
Standard model: 0 ~ 55°C
3.4 Protection against short circuits
Single battery installation
The battery must be protected by a fuse.
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3.5 Battery Orientation
Ultimatron LiFePO4 batteries can be installed upright or on their sides. Please
ensure the battery is fastened if installed in a moving vehicle, such as in an RV
or a boat.
3.6 Storage
Some people use their LiFePO4 batteries seasonally such as while camping in
the summer or while ice fishing in the winter. It is common for some people to
store lithium batteries during the off-season. When storing LiFePO4 batteries, it
is important to store them properly to ensure they do not get damaged and to
keep them at peak performance for many years ahead. Based on the
temperature and length of time, here’s a summary of how to store your LiFePO4
battery:
Recommended storage temperature: -5 to +35°C
Storage up to 1 month: -20 to +60°C
Storage up to 3 month: -10 to +35°C
Extended storage time: +15 to +35°C
It is highly recommended to store lithium batteries indoor during the off season.
LiFePO4 batteries have a low self-discharge rate of 3% a month. This means
that when a lithium battery is stored, it’ll lose 3% of its charge capacity every
month. In order to prevent a higher rate of discharge, we recommend
disconnecting all power draw from your batteries. When you store LiFePO4
batteries, it is important that you store them with a state of charge (SOC) of 30%
or higher. A higher state of charge is recommended when storing for an
extended period of time. If you want the battery to retain a good level of charge
after the storage period is over, you should charge them to 100% and store them
in that fully charged state.
There are major consequences if you store your LiFePO4 battery without a
charge. Because of the 3% self-discharge rate, the battery can become over-
discharged. The level of discharge can potentially go below what the BMS can
protect. This is why it is very important to charge your lithium battery before you
store it. It is highly recommended that you also store the lithium battery at room
temperature, especially when storing them for an extended period of time. Refer
back to the above information to see how long you can store LiFePO4 at various
temperature ranges. Over-discharging the cells due to storage without a charge
can cause permanent damage and void your 5-year battery warranty. The
Ultimatron built-in BMS logs all activities performed on the battery including
storage. Every charge and every discharge is recorded, along with various other
factors, such as temperature.
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Do not exceed the maximum permitted charge voltage.
Use the battery only within the specifi ed temperature range.
The final charge voltage of the battery measured 14.6V at the battery pole.
Use only DC chargers suitable for regulated load characteristics.
Only switch on the charger after connecting the charger to the battery.
After charging, please fi rst turn off the charger, then disconnect the battery
from the charger.
If necessary, the battery management system ( BMS) will automatically bal-
ance the battery charge. Due to the high discharge current and the short
charging time, the battery of the battery can lose balance during a long ser-
vice life. This can cause a loss of capacity and overload the unit. This battery
balancing can be performed in charge and rest modes.
4.1 Charge and discharge
The LiFePo4 battery charges quickly. The time is considerably reduced. There
are no long waiting times. Since there is no memory eff ect with this battery, it
does not always need to be fully charged. The service life tends to increase if
the battery is not always fully charged. An adaptation of the devices previous-
ly used, such as a solar charge regulator or the like. It is not necessary to
charge the battery. The recommended charging voltage is 14.6V.
The lead- acid battery charger can be used, but it is recommended to use a
dedicated lithium battery charger.
4 . Use of the battery
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Recommended charging voltage: 14.6V
Constant voltage duration: 2 hours for a 100% charge, or a few minutes for a
98% charge.
Maximum charge voltage: 14.6V per battery.
Recommended storage voltage: around 13V per battery.
4.3 Cell voltage to « allow discharge »
The threshold below which battery discharge is not authorized is 2 . 5 V as
standard.
4.4 Minimum temperature to « allow charging »
By default, the threshold at which a low temperature alarm is triggered is 0° C.
4.5 Conditions for series and parallel connection
Ultimatron France
60 Avenue de l'industrie
34820 Teyran, France
E-mail: [e-mail]
Site Internet: www.ultimatron-france.fr
The batteries must be of the same batch and of the same model.
Before connecting the batteries in series or parallel, please charge them
fully.
If you have any questions regarding the purchase or use of the bat-
tery, we will be happy to assist you.
5 . Technical support
4.2 Charging voltage
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