ULTIMATRON Smart BMS Series LiFePO4 Lithium Battery 25.6V 54Ah With Bluetooth Instructions

: June 15, 2024
: Ultimatron

Table of Contents

Product description
Safety rules
Installation of the battery
Use of the battery
Technical support
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

ULTIMATRON FRANCE
INSTRUCTIONS FOR USE
SMART BMS SERIE ULTIMATRON Smart BMS Series LiFePO4 Lithium Battery 25 6V
54Ah With Bluetooth -

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.

Product description

1.1 General information
Lithium batteries are certainly the best alternative to lead batteries be- cause they have a stable voltage supply even under heavy load. In addition to its extremely high weight advantage, it also offers a huge reserve of energy. The integrated BMS (Battery Management System) makes it suitable for all Ultimatron LiFePO4 batteries for DC applications. The additional ca- pacity of Ultimatron LiFePO4 batteries can be easily reached. The lithium iron phosphate battery (LiFePO4) is the safest type of conventional lithium battery. The nominal voltage of the LiFeP0O4 cells is 3.2V but the lead bat- tery is 2V. Therefore, a 12.8V LiFeP0O4 battery consists of four cells connect- ed in series, and a 25.6V LiFePO4 battery consists of eight cells connected in series.

Performance and efficiency
Ultimatron LiFePo4 batteries can directly store more than 96% of the energy supplied.
Available capacity is fully used with the same output voltage.
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.
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 10S).
You have all the important data on your battery at your fingertips without other wired battery monitors.
BMS (Battery Management System)
Itis an electronic system allowing the control and the charge of the different 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.
Battery Charging
It does not need to wait for the battery to be fully charged. The Ultimatron LiFePo4 battery charges up to 10 times faster than conventional lead batteries. Existing charge controllers or chargers can also be used in the installation.
Various application
The fields of application of lithium batteries are diverse, especially for stationary or mobile use. In particular mobile homes, solar, electric boats, electric scooters, golf cars or even electric mobiles/ wheelchairs and cleaning machines are more and more frequently equipped.
1.2 Product characteristics

High performance traction
Especially for mobile or stationary use with the highest requirements.
LiFePO4 100Ah lithium battery replaces a 200Ah lead batter y
Thanks to maximum usable capacity.
Environmental-friendly
Lead-acid batteries contain a large amount of heavy metal-lead, which produces waste liquid, while lithium iron phosphate batteries do not contain any heavy metals, and there is no pollution in production and use.
Long service life
Maximum service life with more than 6000 cycles, even with regular deep discharge.
High discharge current
High discharge performance without voltage drop for large consumers such as coffee machines and air conditioning systems.
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.
Low self-discharge
The self-discharge rate of fully charged Li-ion stored at room temperature for 1 month is about 3%

Flexible use

ULTIMATRON Smart BMS Series LiFePO4 Lithium Battery 25 6V 54Ah With
Bluetooth - Flexible use 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)
Itis an electronic system allowing the control and the charge of the different 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 problemiis 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 battery.
– Use a charger without voltage detection to charge with a low current less than 5A).
A LiFePO4 cell will fail if the voltage across the cell exceeds 3.65V.
The cells of LiFePO4 battery do not automatically compensate each other at the end of the charge cycle.

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.

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 flow 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 notin 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 5Ah per 100Ah 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.

Safety rules

2.1 Generalrules
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 suitable transport equipment. Handle lithium batteries with care.

Risk of explosion and fire
The lithium battery connection is still active. Therefore, do not place any object or tool on the battery. Avoid short circuits. Use insulated tools. Do not wear metallic objects such as watches, bracelets, etc. on your body. In the event of a fire, use class D fire extinguishers, foam or CO2 extinguishers.

2.2 ldentification

| 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 handling cables and short circuits.
| Not waterproof.
| This product or parts of this product may be recycled.
****| Conformity mark.

2.3 Elimination

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 allowed in household or industrial waste.

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.

Installation of the battery

Make absolutely sure that the LiFePO4 battery is not connected with the opposite 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 warranty case.

3.1 Verification
After receiving the LiFePO4 battery, please check if the device has been damaged 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 different from the nominal capacity. Do not disassemble the battery without authorization from the supplier.
The operating temperature:
Discharge temperature 20 ~ 75°C
Storage temperature -5~ 35°C
Charge temperature: 0 ~50°C
The model with Heating film: -35 ~ 5°C
3.4 Protection against short circuits
Single battery installation
The battery must be protected by a fuse.
3.5 Charging the battery before use
The battery is charged to approximately 30% when shipped from the factory for safety. It is recommended to a cycle discharge and charge the new battery before use.
If multiple batteries are going to be connected in series or in series/parallel, each individual battery needs to be fully charged to the same or almost the same voltage before all batteries are interconnected.
3.6 Maintenance
No direct maintenance is required. To maintain the battery, keep the connection electrode and the surface clean, tighten the clamp and lightly grease.
Use at least once every three months to maintain the battery and calibrate the state of charge.
3.7 Storage

The Li-ion battery pack should be stored in a cool, dry and well-ventilated area, and should be far from the fire and the high temperature.
The best Voltage in storage is 13V~13.6V for 12V battery, and 26V~27.2V for 24V battery.
The battery should be stored in the temperature range of the product specification. The best storage temperature is 0~30°C. The best humidity is 60 + 25%.
If the battery is not used, please charge the battery every three months to keep the capacity at least 50%. Low capacity (30%) storage is prohibited. If the battery can not use because of low capacity storage, refer to 1.3 BMS note what to do next.

3.8 Transportation

Do not mix the battery products with other cargo.
Do notimmerse the battery products in water or get it wet.
The maximum temperature during transportation is below 50°C.

Use of the battery

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 effect 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 previously 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 or 29.2V.
The lead-acid battery charger can be used, but it is recommended to use a dedicated lithium battery charger.

Do not exceed the maximum permitted charge voltage.
Use the battery only within the specified temperature range.
Thefinal 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 first turn off the charger, then disconnect the battery from the charger.
If necessary, the battery management system (BMS) will automatically balance 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 service life. This can cause a loss of capacity and overload the unit. This battery balancing can be performed in charge and rest modes.

4.2 Charging voltage

Recommended charging voltage: 14.6V or 29.2V
Constant voltage duration: 2 hours for a 100% charge, or a few minutes for a98% charge.
Maximum charge voltage: 14.6V or 29.2V per battery.
Recommended storage voltage: 13V or 26V per battery.

4.3 Cellvoltage to « allow discharge »
The threshold below which battery discharge is not authorized is 2.5V 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