VOLTIUM ENERGY VE-SPBT-2450 User manual

USER GUIDE
Voltium Energy LiFePO4 Battery

CHECK ...........................................2
BATTERY INSTALLATION ............................3
USING THE BATTERY................................5
FREQUENTLY ASKED QUESTIONS .....................7
GLOSSARY ........................................9
TECHNICAL SUPPORT...............................9
VOLTIUM ENERGY LIFEPO4 APP ......................10
TABLE OF CONTENTS

VERSION
2021.V1
3
USER GUIDE
VOLTIUM ENERGY
LIFEPO4BATTERY
CHECK
Upon receipt of your product, please make sure that it is externally undamaged and that no parts
are missing. If this should be the case, do not use the battery and contact the dealer.
CONTENT
ࠠVoltium Energy LiFePO4 accu
ࠠScrews and washers (these are xed in the plus and minus terminals)
INSTALLATION POSITION
The batteries can be installed vertically as well as horizontally.
Please note! Always check if the LiFePO4 battery is properly secured after installation, to ensure it cannot
move during use.
BATTERY CONNECTION
The optional round terminals can be used to replace standard terminals, and terminal clamps can
then be used.
CHARGE TE BATTERY BEFORE USE
The battery is usually charged to about 20% at delivery. It is recommended to fully charge a new
battery before using or installing it.Always use a suitable LiFePO4 charger to charge the battery.
INSTALLATION
ࠠDo not disassemble the battery without the supplier’s permission.
ࠠThe batteries are suitable for serial or parallel connection.
ࠠSerial or parallel connection is possible for up to 4 batteries.
ࠠIf you install the batteries in a serial or parallel connection, make sure that all batteries
have the same voltage level.The voltage difference must not exceed 0.2V.To make sure, we
recommend to charge the batteries before measuring the voltage level.
ࠠMake sure that the cabling can resist twice the battery capacity.
ࠠExample: For a 100Ah battery, use a 200A cable.
ࠠDo not reverse the positive and negative terminals.This will damage the batteries and/or
connected equipment.
ࠠThe operating temperature must be below +60°C.
Please note! The batteries are not suitable for combined serial and parallel connection.
BATTERY
INSTALLATION

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2021.V1
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VOLTIUM ENERGY
LIFEPO4BATTERY
SHORT CIRCUIT PROTECTION
Installed batteries must be protected by a fuse.
MAINTENANCE
For proper maintenance of the battery, keep the terminals and the surface clean, tighten the
clamps securely, and lightly grease them.The full battery cycle must be used at least once per year
to maintain battery capacity and to calibrate the battery status.When used in serial connection,
the batteries must be charged separately at least once a year.
STORAGE
To store the batteries correctly, disconnect and protect them from the possibility of a short
circuit between the terminals.When the batteries are not used, they should be charged every
6 months to avoid deep discharging. Batteries must be stored in a dry and dark area at room
temperature (15°C to 25°C). When stored, batteries must be charged to approximately 70-80%
SOC.

VERSION
2021.V1
5
USER GUIDE
VOLTIUM ENERGY
LIFEPO4BATTERY
BMS FUNCTIONS
Each 12.8V battery consists of four serially connected battery cells. Each 25.6V battery consists
of eight serially connected battery cells.The internal BMS system is a security system with the
following functions:
ࠠPassive balancing: During ‘’TOP’’ charging, the battery cells are balanced individually.This
ensures that all battery cells remain at the same voltage level.
ࠠOver-voltage protection: Charging stops when the maximum voltage of 3.75V per cell is
reached.
ࠠUnder-voltage protection: Discharging stops when the minimum voltage of 2.8V per cell is
reached.
ࠠTemperature protection: As soon as a temperature of -20°C or +80°C is reached,
temperature protection is activated and the battery switches off.
ࠠPre-charge function: This function allows the battery to deliver a very high current in a
short time. This function is required, for example, for some inverters that use a high start-up
current.This will prevent the battery’s safety mode from being activated.
CHARGING
We It is recommended to charge a LiFePO4 battery with a constant current of 0.2C until the
battery has reached 14.6V. From that point the battery will charge at a constant voltage of 14.6V,
while the charging current decreases. Charging will stop when the charging current has decreased
from 0.2C to 0.05C.The battery must be charged at a temperature between 0°C and 45°C, and
must then be allowed to rest for 30 minutes before discharging. Never exceed the maximum
limits for charging current, voltage or temperature specied in this document or in the data
sheets. Do not charge the battery with the terminals reversed.
ࠠDo not exceed the maximum charging voltage.
ࠠUse the battery only within the specied temperature range.
ࠠDo not turn on the charger before it is connected to the battery.After charging, switch off
the charger rst, and then disconnect the battery from the charger.
ࠠIf the battery gets very hot during charging, interrupt charging and let the battery cool down
before resuming charging.
ࠠThe Battery Management System (BMS) automatically balances the cells as needed.
DISCHARGING
Ideally, the battery is discharged at a constant current of 0.2C to 10.0V at a temperature of 20°C
(± 5°C). Allow the battery to rest for 30 minutes before recharging.
USING THE
BATTERY

VERSION
2021.V1
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USER GUIDE
VOLTIUM ENERGY
LIFEPO4BATTERY
CHARGING SPECIFICATIONS DISCHARGING SPECIFICATIONS
Charging voltage 14.6V Output volrage
discharged battery 10.0V
Recommended ‘oat’
charge voltage in
standby
13.8V Recommended output
voltage range 12.8V – 10V
Max. charging current Model-
dependant
Max. discharging
current
Model-
dependant
Recommended
charging current 0.2C Default discharge current
Constant
current 0.2C
Cut-off voltage when
charging 15.2V Cut-out voltage when discharging 10V
Temperature range
when charging 0°C – 45°C Temperature range when discharging -20°C – 60°C
CHARGING SPECIFICATIONS DISCHARGING SPECIFICATIONS
Charging voltage 29.2V Output volrage
discharged battery 20.0V
Recommended ‘oat’
charge voltage in
standby
27.6V Recommended output
voltage range 25.6V – 20V
Max. charging current Model-
dependant
Max. discharging
current
Model-
dependant
Recommended
charging current 0.2C Default discharge current
Constant
current 0.2C
Cut-off voltage when
charging 30.4V Cut-out voltage when discharging 20V
Temperature range
when charging 0°C – 45°C Temperature range when discharging -20°C – 60°C
SPECIFICATIONS FOR CHARGING AND DISCHARGING THE BATTERY
12.8V models
25.6V models

VERSION
2021.V1
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VOLTIUM ENERGY
LIFEPO4BATTERY
WHICH CHARGER IS SUITABLE?
We recommend using a charger designed for charging LiFePO4 batteries.The lithium charger
must use a constant current (CC) and constant voltage (CV). The constant current depends on
the capacity (Ah) of the lithium battery (0.2C to 0.5C is recommended). The constant voltage
when charging a 12.8V battery should be 14.6V.
As an alternative, a standard lead-acid battery charger with a constant voltage can be used to
charge Voltium Energy LiFePO4 batteries, provided that the following standards are met. Failure to
do so may result in damage to the battery when using such a charger.
ࠠThe charger must not have an equalisation setting.
ࠠA maximum charging voltage of 14.6V (12.8V battery) or 29.2V (25.6V battery)
ࠠA recommended oat-charging voltage of 13.8V (12.8V battery) or 27.6V (25,6V battery)
ࠠSome smart or multi-stage lead-acid battery chargers have an OCV (Open Circuit Voltage)
function.This function will cause the charger to not charge LiFePO4 batteries that have been
discharged too far.
CAN I COMBINE LIFEPO4 BATTERIES WITH A STARTER BATTERY?
In principle, only batteries of the same type and model can be connected in parallel or serially. So,
you should only use LiFePO4 batteries. Never connect the battery directly to a lead-acid battery,
because the difference in charging/discharging properties will inevitably cause problems.
For combined use with a lead-start battery, it is recommended to use a separation relay. This
allows optimal charging of the batteries via the vehicle’s dynamo, without direct connection
between lead and lithium batteries.
THE BLUETOOTH FUNCTION DOES NOT WORK
All you need to use the Bluetooth function is theVoltium Energy LiFePO4 app.This app allows
you to connect to theVoltium Energy LiFePO4 battery.A direct connection via Bluetooth on your
smartphone is not possible.
THE BATTERY DOES NOT SHOW UP IN THE LIST OF AVAILABLE BATTERIES IN THE APP
A battery can only be connected to one smartphone at a time, and the app must be operated
within a range of 5 meters from the battery.The range can be affected by obstacles such as walls,
windows, etc. Check this when installing the battery. In some cases, it also helps to reinstall the
app on your phone.
The Bluetooth function may have some communication limitations when enclosed in a thick or
metal casing.
FREQUENTLY
ASKED QUESTIONS

VERSION
2021.V1
8
USER GUIDE
VOLTIUM ENERGY
LIFEPO4BATTERY
MY NEW BATTERY ALREADY SHOWS CHARGE/DISCHARGE CYCLES IN THE APP.
As part of the quality check and assurance process, the batteries and the installed components
are checked before they are sold.These charge and discharge cycles may be shown.This is
perfectly normal and no cause for concern.
CAN THE BATTERIES BE CONNECTED IN SERIES OR IN PARALLEL?
All Voltium Energy LiFePO4 batteries can be used in parallel or in serial connection.All models
support the use of 4 batteries in parallel or in series, without requiring additional engineering.
CAN THE BATTERIES BE CONNECTED IN A COMBINED SERIAL AND PARALLEL
CONFIGURATION?
The Energy LiFePO4 batteries cannot be installed in a combination of parallel and serial
connection.
SHOULD BATTERIES USED IN SERIES OR IN PARALLEL BE FROM THE SAME BATCH?
Yes, we recommend using batteries from the same batch for connection in series or in parallel.
DOES TEMPERATURE AFFECT THE LIFESPAN OF A LIFEPO4 BATTERY?
As with all batteries, high temperatures will reduce the expected lifespan of the LiFePO4 battery.
DOES TEMPERATURE AFFECT THE CAPACITY OF A LIFEPO4 BATTERY?
Yes, temperature can have a major impact on the performance of a LiFePO4 battery.The chart
below shows a typical ‘temperature vs. capacity curve’ for lithium at a discharge rate of 0.5C.
Different Temperature Performance
Temperature (°C)
-20
120
100
80
60
40
20
0
-10 0 10 20 30 40 50
Capacity (%)

VERSION
2021.V1
9
USER GUIDE
VOLTIUM ENERGY
LIFEPO4BATTERY
IMPORTANT TERMS
This list contain explanations of some common terms and abbreviations.
If you have any questions about your purchase or the operation of your battery after reading the
user’ guide or consulting the datasheet, you can contact the sales representative or contact our
support department directly.
GLOSSARY
TECHNICAL
SUPPORT
TERM/AFKORTING TOELICHTING
LiFePO4 Lithium Iron Phosphate
BMS Battery Management System
SOC State Of Charge
BCI Battery Communication Interface
DOD Depth of Discharge
CCCV Constant Current, Constant Voltage
Cycle An operating period during which the battery is fully discharged
and then recharged.
Lifecycle The maximum battery life that can be achieved by following the
guidelines in this user’s manual.
OPENING HOURS MON - FRI 9 am to 5 pm
E-MAILADDRESS [e-mail]
Support department contact details

VERSION
2021.V1
10
USER GUIDE
VOLTIUM ENERGY
LIFEPO4BATTERY
INSTALLATION
By scanning the QR code with your smartphone
you can download the version of theVoltium Energy
LiFePO4 app for the operating system of your
smartphone.You are automatically taken to the App
store (Apple) or the Google Play store (Android).
VOLTIUM ENERGY
LIFEPO4 APP
MONITORING
Once connected to the battery, you
have all the relevant information and
values for your LiFePO4 battery at a
glance.
As part of the quality check and
assurance process, the batteries and
the installed components are checked
before they are sold.These charge may
be discharge cycles are shown.This
is perfectly normal and no cause for
concern.
CONNECTION
After you have successfully downloaded and installed the
app, you can open the app on your smartphone.When using
the app for the rst time Bluetooth must be turned on
or activated.When the relevant message appears on your
smartphone, press “Allow” or “OK”.
To connect to your battery, click on the battery in the battery
list. If several batteries are shown, you can identify the battery
by its serial number.This serial number can be found on the
sticker on the side of the battery.
Back to the battery list
Pro information
(password required)
Status
(Discharging / Standby / Charging)
Battery condition
State of Charge
Battery information
ANDROID APP
IOS APP