EXPANSION BATTERY PACK
INTRODUCTION
Thank you for selecting and buying V-TAC Product. V-TAC will serve you the best. Please read these instructions care-
fully & keep this user manual handy for future reference. If you have any another query, please contact our dealer or
local vendor from whom you have purchased the product. They are trained and ready to serve you at the best.
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INSTRUCTION MANUAL
PACKAGE CONTAINS
This marking indicates that this
product should not be disposed
of with other household wastes.
Caution, risk of electric shock.
MODEL
SKU
VT-614
12707
3000
LIFE CYCLE
IN CASE OF ANY QUERY/ISSUE WITH THE PRODUCT, PLEASE REACH OUT TO US AT: [email protected]
FOR MORE PRODUCTS RANGE, INQUIRY PLEASE CONTACT OUR DISTRIBUTOR OR NEAREST DEALERS.
V-TAC EUROPE LTD. BULGARIA, PLOVDIV 4000, BUL.L.KARAVELOW 9B
Expansion Battery Pack User Manual
Expansion Cable
Adapter
• NET WEIGHT ≈ 7.5kg
• DIMENSION 301×227×193mm
• NOMINAL ENERGY 614Wh
• NOMINAL CAPACITY 12Ah
• NOMINAL VOLTAGE 51.2V
⎓
• OPERATING HUMIDITY 10%–85% (Non-condensing)
• ALTITUDE <2000m
• CURRENT Charge: 12A Max., Discharge: 24A Max.
• POWER-OUTPUT 40–57.6V
⎓
, 24A Max.
• USB-A1 5V
⎓
2.4A, 12W Max.
• USB-C1 5/9/12/15V
⎓
3A, 20V
⎓
5A, 100W Max.
• USB-C2/C3 5/9/12/15V
⎓
3A, 20V 3.25A, 65W Max.
• CAR CHARGER 12.6V
⎓
10A Max.
• POWER-INPUT 40–57.6V
⎓
, 12A Max.
• PV CHARGE 13–45V
⎓
12A, 400W Max.
• ADAPTER INPUT 21V
⎓
5A, 105W Max.
• CAR CHARGER 12/24V, 5A Max.
• DISCHARGE TEMPERATURE RANGE -20°C ~ 45°C
• CHARGE TEMPERATURE RANGE 0°C ~ 45°C
• STORAGE AMBIENT TEMPERATURE -20°C ~ 45°C (20°C ~ 30°C Preferred)
• CELL TYPE Lithium iron phosphate battery (LiFePO4)
• LIFE CYCLE 3000 cycles
• PROTECTION TYPE
TECHNICAL DATA
OUTPUT
INPUT
BATTERY
OPERATING TEMPERATURE
Over temperature protection, low temperature
protection, over discharge protection, over
charge protection, over load protection, short
circuit protection, over current protection
*Test conditions: 95% DOD, 0.5C charge & 1.0C discharge at +25±3°C.*
Whether this product can be charged or discharged depends on the actual tempera-
ture of the battery pack.
• Do not let a working expansion battery pack be close to the heat source, such as fire or heater.
• Do not make expansion battery pack contact with any liquid. Do not immerse this product in water or
get it wet. Do not use this product in the rain or in a wet environment.
• Do not use this product in a strong electrostatic or strong magnetic field environment.
• Do not disassemble in any way or pierce it with a sharp object.
• Do not use wires or other metal objects to short-circuit the product.
• Do not use parts or accessories that are not ocially supplied. If replacement is required, please visit
the ocial website for related information.
• When using this product, please strictly follow the ambient temperature in this User Manual. If the
temperature is too high, the battery may catch fire or even explode; if the temperature is too low, the
product's performance will be severely degraded, or it may not be able to meet the requirements for
normal use.
• Please do not put other heavy objects on the expansion battery pack except the expansion battery
pack; the stacking method of the expansion battery pack has been designed and tested by structural
mechanics. For the stacking method of the expansion battery pack, please refer to the chapter 7 of
this user manual.
• Do not stop the fan by force or expose expansion battery pack in a non-ventilated or dusty environ-
ment when it is working.
• Please avoid collision, drop, and violent vibration. If severe impact happens, shut down the power
supply immediately. Please fix expansion battery pack firmly during transportation to avoid vibration
and impact.
• If expansion battery pack falls into water accidentally, place it in a safe and wide area, and keep your-
self away from it until it's dry. Dried product shall not be used again. Dispose it properly according to
chapter 2.2 in this user manual. If expansion battery pack is on fire, please use fire extinguishing
equipment in the recommended order: water or water mist, sand, fire blanket, dry powder, dioxide
carbon fire extinguisher.
• If there is dirt on the connector of this product, wipe it o with a dry cloth.
• Be careful to store the product so that it does not fall over and cause damage. If the product is tipped
over and severely damaged, immediately turn it o, place the battery in an open area, away from
combustible materials and people, and dispose of it in accordance with local laws and regulations.
• Please store this product out of the reach of children and pets.
• The product should be stored in a dry and ventilated place.
• Warning: Operation of this equipment in a residential environment could cause radio interference.
• When conditions permit, please be sure to completely discharge the battery of this product before
placing the product in the designated battery recycling bin. This product contains batteries, batteries
are hazardous chemicals, it is strictly forbidden to waste in ordinary garbage bins. For details, please
follow local laws and regulations on battery recycling and disposal.
• If the battery cannot be completely discharged due to the failure of the product itself, please do not
dispose of the battery directly in the battery recycling bin, but contact a professional battery recycling
company for further disposal.
• The battery will not start aer over-discharging, please dispose of it as discarded.
SAFETY GUIDELINES
Warning
Discard
Power Input / Output
Connect to the extension port of the power
station or the power input/output interface
of another battery pack.
Power button
USB-A
output port
Car charge output
Blue light:
Run indicator
Solar / car charge input
Red light ：
Alarm indicator
Blue light
SOC indicator
USB-C
output port
ALM
POWER
RUN
DC12.6VOUTPUT
USB-A 12W
USB-C1 100W
USB-C2 65W USB-C3 65W
Power - Input/Output Power - Input/Output
12-55V 12A MAX.
• This product can be used alone, with USB-A and USB-C and car charger interface to power electronic
devices.
• It can be used with our 1kW power station to increase the battery life of the power station.
• When the battery packs are used in parallel, any power button can wake up the parallel battery packs.
PRODUCT OVERVIEW
Charge the power station by solar panel
Power on: Short press the power button for 1 second to power on, the indicator
light will light up, and the SOC power and operating status will be displayed.
Power o: Press and hold the power button for 3 seconds to shut down, the
indicator light will turn o.
ALM
POWER
RUN
DC12.6VOUTPUT
USB-A 12W
USB-C1 100W
USB-C2 65W USB-C3 65W
USB output is enabled by default aer
the main power switch is turned on.
The 12V DC output is enabled by default aer
the main power switch is turned on.
USB output
12V DC output
• Please follow the user manual to connect the solar panels.
• Before connecting the solar panel, check whether its output voltage is within power station specifi-
cations to avoid damage to power station.
USAGE INSTRUCTIONS
PV CHARGING
Solar charging cable (DC7909)
*The interface of this product is DC7909. If you need an adapter cable from MC4 to
DC7909, please purchase it yourself.
• Turn o the power station and expansion battery pack.
• The expansion cable plugs into the expansion port of the power station and the Power Input/Output of
the expansion battery pack.
• Aer parallelization, press power button ( ) of power station to enable the power station and battery
pack to show current capacity. The power station shows the paralleled quantity, and capacity is expand-
ed.
• Aer parallelization, connect ports of the power station for charging or discharging.
• Before connecting the expansion battery pack, please ensure that the power station and the expansion
battery pack are both in the o state.
• Aer connecting the expansion battery pack, make sure that the number of parallel expansion battery
pack icon appears on the LCD of the power station before starting to use it.
• Please do not connect or remove the power station directly during the charging and discharging
process. If you need to connect or remove the expansion battery pack in process, please turn o the
power first and then operate.
• Do not touch the metal terminal at the connection port of expansion battery pack with your hands or
other objects. If the metal terminal is attached to other objects, please gently wipe it clean with a dry
cloth.
CAR CHARGING
PARALLEL CONNECTION METHOD
Car charger cable (DC7909)
Please note the following when using
PARALLEL MODE OF 1 POWER STATION AND 1 EXPANSION BATTERY PACK
Power station can be charged by a car charging port. It should be charged aer the car starts, so as to avoid
the car battery loss and failure to start. At the same time, ensure good connection between the car charging
port and cigarette lighter. We take no responsibilities for any loss caused by improper operation.
Power station supports connection with 6 expansion battery packs at the same time for larger capacity.
Power station Expansion battery pack
Power station Expansion
battery pack 1
Expansion
battery pack 6
Expansion
battery pack 2
Expansion
battery pack 3
Expansion
battery pack 4
Expansion
battery pack 5
• Turn o the power station and expansion battery packs.
• The expansion cable plugs into the expansion port of the power station and the Power Input/Output of
expansion battery pack 1, the Power Input/Output of expansion battery pack 1 connects to the Power
Input/Output of expansion battery pack 2, the Power Input/Output of expansion battery pack 2 con-
nects to the expansion battery pack 3. 6 battery packs can be parallelized at most.
• Aer parallelization, press power button ( ) of the power station to enable the power station and
battery packs to show current capacity. The power station shows the paralleled quantity, and capacity
is expanded.
• Aer parallelization, connect ports of the power station for charging or discharging.
• Both ports of the expansion battery pack can be connected
to the expansion port of the power station.
• Both ports of the expansion cable can be connected to the
ports of the expansion battery pack and the expansion port
of the power station.
Notes
PARALLEL MODE OF 1 POWER STATION AND MULTIPLE
EXPANSION BATTERY PACKS
Indicator Status
Blue light: Run indicator Standby, working
Red light ： Alarm indicator Alert, faulty
Blue light: SOC indicator SOC indicator
SOC indicator
Description
Blue light:
Run indicator
Red light ：
Alarm indicator
Blue light
SOC indicator
• Both ports of the expansion battery pack can be connected to
the expansion port of the power station.
• Both ports of the expansion cable can be connected to the
ports of the expansion battery pack and the expansion port of
the power station.
INDICATOR LIGHT
Notes
INDICATOR STATUS
NORMAL STATE
0%≤SOC≤20%
20%<SOC40%
40%<SOC≤60%
60%<SOC≤80%
80%<SOC≤100%
SOC indicator
Alerting
Battery over voltage
Battery under voltage
Unit under voltage
VTOP under voltage
VTOP over voltage
Battery over temperature
Battery low temperature
Overcurrent
when charging
Overcurrent
when discharging 1
Turn o, remove and check equipment, restart
the battery. If it’s still not fixed, contact
customer service.
Restart the battery. If it’s still not fixed, contact
customer service.
Turn o, wait the temperature to recover, restart the
battery. If it’s still not fixed, contact customer
service.
Turn o and wait for 2 hours. If it’s still
not fixed, contact customer service.
Overcurrent
when discharging 2
Short when discharging
Short when charging
PCB over temperature
Pre-charge resistor
over temperature
Battery under voltage
IUIP parallel signal fault
I_WORK parallel
signal fault
Parallelization over time
Parallelization
readiness failure
Restart the battery. If it’s still not fixed, contact
customer service.
Charge the battery, waiting for the vol
tage
to recover.
Turn o and wait for 2 hours. If it’s still not fixed,
contact customer service.
Restart the battery. If it’s still not fixed, contact
customer service.
Charge the battery, waiting for the voltage
to recover.
Turn o, check the communication cable,
restart the battery. If it’s still not fixed,
contact customer service.
Button Indicator
Solution
Red light
blinks
• It is recommended to restart by the switch button.
• When parallelization is applied, aer the battery under voltage protection and powered o,
only need to press the button switch on any battery to forcibly activate it.
Remark
ALERTING
Button Indicator
SOC indicator
Alerting
Solution
Restart the battery. If it’s still not fixed, contact
customer service.
Red light
always on
Battery voltage
sampling wire broken
MOS failure
AFE
communication failure
EEPROM failure
Voltage sensor failure
Current sensor
drift failure
Main circuit fault
Pre-charge over time
Current sensor failure
Dead battery
Inverter
communication failure
CAN bus failure
RS485 bus failure
Parallel address
recognition failure
Short circuit protection
fuse circuit fault
Contact customer service.
Contact customer service.
Turn off, check the communication cable. If it’s
still not fixed, contact customer service.
Restart the battery. If it’s still not fixed, contact
customer service.
1. What kind of battery is used?
Lithium iron phosphate battery (LiFePO4).
2. How to know the supply time?
The LED screen of the portable outdoor power station displays the charge level of
the expansion pack.
3. How to know it is charging?
When in charge, the power indicators will flash to show the charging state.
4.How to clean the product?
Clean the unit with a dry, so and clean cloth or tissue.
5.How to store the unit?
Turn it o, and keep it in a dry and ventilated place. Do not expose it close to water.
For long-term storage, charge and discharge every 3 months (i.e. discharge to 0%
then charge to 100%, then discharge to 60% for long-term storage).
6.Can it be taken on board?
No.
FAQS
FAULTY
• Keep it away from water, heater and metal parts.
• It is recommended to use or store expansion battery pack under 20–30°C ambient temperature.
• For long-term storage, charge and discharge every 3 months (i.e. discharge to 0% then charge to 100%,
then discharge to 60% for long-term storage); products that have not been charged and discharged for
more than 6 months are not warranted.
• For safety, do not store expansion battery pack with temperature above 45°C or below –10°C.
• If the capacity is seriously insucient and idle time is too long, the product will enter deep sleep mode,
and the product can only be used aer being charged.
Before using the power station expansion battery pack, please read this user manual to ensure understanding and proper
use. Aer reading the user manual, please keep it well for future reference. Improper operation may cause serious injury to
yourself or others, or result in product damage and property loss. Once using expansion battery pack, you are deemed to
have understood and accepted all terms and contents herein. Users promise to be responsible for their actions and all
consequences arising therefrom. We shall not be liable for any loss arising from user’s not following this user manual.
In compliance with laws and regulations, the company reserves the right of final interpretation of this document and all
related documents of this product. Subject to update, revision or termination without prior notice, please visit the ocial
website for the latest product information.
MAINTENANCE
DISCLAIMER
IMPORTANT NOTES
• This product contains battery type "Secondary" (rechargeable).
• Electrical and electronic equipment that has become waste is known as old equipment/device. Old devices
must not be disposed of with other household waste.
• Owners of old devices at the end of its service life must return the device by taking them to the collection
points set up by public waste disposal authorities or distributors. This return does not entail any costs for you.
• Owners of old devices have an obligation to remove accessible batteries / rechargeable batteries as well as
non-destructively removable lamps from the old device prior to return. This does not apply if old devices are
being prepared for reuse with the participation of a public law firm.
• Battery removal warning: The battery contained in this product must be removed only by professional
personnel only. The battery must never be removed by the end user, if not removed correctly it could
damage the battery which could cause fire.
• Batteries removed from an old electronic device should be disposed of separately. This return of battery does
not entail any costs for you and the user is obliged to return the battery.
• Please make sure that this product is not powered on when removing the battery. Fire hazard! Avoid
short-circuiting the contacts of a detached battery. Do not incinerate the battery. Please handle the battery
with Caution!
• If electrical appliances or batteries are disposed of in landfills or dumps, hazardous substances can leak into
the groundwater and get into the food chain, damaging your health and well-being.
• The symbol of "Crossed rubbish bins "indicates that this product should not be disposed of with other
household wastes and must be collected separately from unsorted municipal waste at the end of its service
life.
• Please use the link below to view the online directory of the collection and return points:https://www.ear-sys-
tem.de/ear-verzeichnis/sammel-und-ruecknahmestellen
V-TAC WEST EUROPE LTD. IN CASE OF ANY QUERY/ISSUE WITH THE PRODUCT, PLEASE REACH OUT TO US AT:
[email protected] FOR MORE PRODUCTS RANGE, INQUIRY PLEASE CONTACT OUR DISTRIBUTOR OR NEAREST DEALERS.
V-TAC WEST EUROPE LTD. GROUND FLOOR, 71 LOWER BAGGOT STREET, DUBLIN 02, IRELAND DO2 P593
V-TAC UK LTD. IN CASE OF ANY QUERY/ISSUE WITH THE PRODUCT PLEASE REACH OUT TO US AT
[email protected] V-TAC, 5A TUNGSTEN PARK, DOWNS ROAD, WITNEY, OXFORDSHIRE, OX29 0AX
