sako LiFePO4 Lithium Battery Power Bank Instruction Manual

sako LiFePO4 Lithium Battery Power Bank Instruction Manual

Safety Precautions

Reminding

1. It is very important and necessary to read the user manual carefully (in the accessories) before installing or using battery .Failure to do so or to follow any of the instructions or warnings in this document can result in electrical shock ,serious injury ,or death,or can damage battery ,potential rendering it inoperable .
2. If the battery is stored for long time ,it is required to charge them every six months ,and the soc should be no less than 90% .
3. Battery needs to be recharged within 12 hours ,after fully discharged .
4. Do not expose cable outside .
5. All the battery terminals must be disconnected for maintenance .
6. Please contact the supplier within 24 hours if there is something abnormal .
7. Do not use cleaning solvents to clean battery .
8. Do not expose battery to flammable or harsh chemicals or vapors .
9. Do not paint any part of battery ,include any internal or external components .
10. Do not connect battery with PV solar wiring directly .
11. The warranty claims are excluded for direct or indirect damage due to items above .
12. Any foreign object is prohibited to insert into any part of battery .

Warning
Before Connecting

1. After unpacking ,please check product and packing list first ,if products is damaged or lack of parts ,please contact with the local retailer .
2. Before installation ,be sure to cut off the grid power and make sure the battery is in the turnedoff mode .
3. Wiring must be correct ,do not mistake the positive and negative cables ,and ensure no short circuit with the external device .
4. It is prohibited to connect the battery and AC power directly .
5. The embedded BMS in the battery .The wall mounted case are not allowed to be used in series ,in the communication state, a maximum of 16 parallel connections are allowed .
6. Battery system must be well grounded and the resistance must be less than 1Ω .
7. Please ensured the electrical parameters of battery system are compatible to related equipment.
8. Keep the battery away from water and fire .

In Using

1. If the battery system needs to be moved or repaired ,the power must be cut off and the battery is completely shutdown .
2. It is prohibited to connect the battery with different type of battery .
3. It is prohibited to put the battery working with faulty or incompatible inverter .
4. It is prohibited to disassemble the battery (QC tab removed or damaged) .
5. In case of fire ,only dry powder fire extinguisher can be used ,liquid fire extinguishers are prohibited .
6. Please do not open ,repair or disassemble the battery except staffs from manufacturer .We do not undertake any consequences or related responsibility which because of violation of safety operation or violating of design ,production and equipment safety standards .

Introduction

24/48VDC series Lithium battery power bank is one of new energy storage products developed ,it can be used to support reliable power for various types of equipment and systems .Is especially suitable for application scene of high power ,limited installation space ,restricted load-bearing and long cycle life .

24/48VDC series has built-in BMS battery management system ,which can manage and monitor cells information including voltage ,current and temperature .What’s more ,BMS can balance cells charging and discharging to extend cycle life .

Multiple batteries can connected in parallel to expand capacity and power in parallel for larger capacity and longer power supporting duration requirements .

The capacity of Lithium battery should be higher than the Solar Inverter which you will connect with

features:

• The whole module is non-toxic ,non-polluting and environmentally friendly .
• athode material is made from LiFePO4 with safety performance and long cycle life .
• Battery management system (BMS) has protection functions including over-discharge overcharge ,over-current and high/low temperature .
• The system can automatically manage charge and discharge state and balance current and voltage of each cell .
• Flexible configuration ,multiple battery modules can be in parallel for expanding capacity and Power .
• dopted self-cooling mode rapidly reduced system entire noise. The module has less self-discharge ,up to 6 months without charging it on shelf ,no memory effect ,excellent performance of shallow charge and discharge .
• Working temperature range is from -10℃ to 50℃ ,(charge 0℃~ 50℃ ,discharge -10℃~ 50℃) with excellent discharge performance and cycle life .

Specifications:

Equipment Interface Instruction

1. LCD Display

Display page of working status data .
6. Active balancing external interfaces
Connect the external equalizer
7. Double RS485 interfaces
Follow RS485 protocol, for communication between multiple parallel
8. RS232 interfaces
Follow RS232 protocol, for output battery information
9. Device address
Used to set the address of each BMS protection board .
11. Power switch
ON ~ Long button one time ,the battery is turn on and the battery has output voltage . OFF ~ Keep flash pressing the button ten times ,the battery is turn off and the battery has no output voltage . RESET ~ Keep long pressing the button more than 5 seconds ,the BMS software reset to start output voltage
12. SOC status indicator
Green LEDS to show the battery’s current capacity 25% 50% 75% 100% .
13. Alarm status indicator
Red LED flashing to show the battery has alarm .
14. Run status indicator
Yellow LED lighting to show the battery is charging ,and fast flashing to show the battery is discharging ,and slow flashing to show the battery is standby statu
15. +Battery terminal
There are one pair of terminals, Red is battery positive pole .
16. -Battery terminal
There are one pair of terminals, Black is battery negative pole .

BMS Modbus-485 communication device address

LED INDICATORS INSTRUCTIONS

State| Nominal/Warning Protection| Run| Alarm| Capacity Indicators LED| Instruction
---|---|---|---|---|---
●| ●| ●| ●| ●| ●
Shut down| Dormancy| OFF| OFF| OFF| OFF| OFF| OFF| All OFF
Standby| Nominal| Slow flash| OFF| **** Follow battery capacity| Standby
Warning| Slow flash| flash| Battery at low voltage
**** Charge| Nominal| ON| OFF| Follow battery capacity| The LED Light of    the highest capacity flashing
Waring| ON| flash
Over charge| ON| flash| ON| ON| ON| ON| Stop charging
Over current,Over temperature| OFF| ON| Follow battery capacity| Stop charging
**** Discharge| Nominal| Fast flash| OFF| **** Follow battery capacity|
Waring| Fast flash| flash|
Over discharge| OFF| OFF| OFF| OFF| OFF| OFF| Stop discharging
Over current,Over temperature| OFF| ON| OFF| OFF| OFF| OFF| Stop discharging
Disable| | OFF| ON| OFF| OFF| OFF| OFF| Stop charging and discharging

supply input)
8| GND| 8| GND

LCD display instruction
1st screen after turn on the battery ,use the power switch to turn pages .

pack voltage , charge or discharge current .
state of capacity , SOC percentage .
Cell temperature 1and 2 , PCB board temperature.
Battery charging working status of the battery pack.

Use the power switch to enter the 2nd screen .

charge MOS is on , discharge MOS is on.
this cell with the highest voltage .
this cell with the lowest voltage .
equalizer of circuit working state .

After use the power switch to enter the 3rd screen .

cell10f voltage , cell 2 of voltage .
cell 3 of voltage , cell 4 of voltage .
cell50f voltage, cell 6 of voltage .
cell 7 of voltage , cell 8 of voltage .

After use the power switch to enter the 4th screen .

cell9of voltage , cell 10 of voltage .
cell 11 of voltage , cell 12 of voltage .
cell 13 of voltage , cell 14 of voltage .
cell 15 of voltage , cell 16 of voltage .

After use the power switch to enter the 5th screen .

stop charging of single cell voltage .
recovery charging of all cell voltage .
stop discharging of single cell voltage .
recovery discharging of all cell voltage .

After use the power switch to enter the 6th screen

number of cells in series in battery pack .
rated full capacity .
current accuracy range .
number of charge and discharge cycles .

Change the 24V BMS default Modbus485 communication data

thelong keys sets the full of charge voltage range 27.2~29 2V
the long keys sets the empty of discharge of range voltage 20.0~24.8V
the long keys sets the max. of charge current 10~100A
the long keys sets the max. of discharge current 10~150A

Change the 48V BMS default Modbus485 communication data .

the long keys sets the full of charge voltage range 54.4~58.4V
the long keys sets the empty of discharge of range voltage 40.0~49.6V
the long keys sets the max. of charge current 10~100A
the long keys sets the max. of discharge current 10~150A

Operation instructions:

1. First, stay in the fifth display screen, and then the long keys for more than 3 seconds, it will automatically enter the page of setting BMS default communication data .

2. The short keys select the voltage or current item that you need to change, and the the long
   key for more than 3 seconds, the numbers start flashing ,and the short keys to select the voltage and current to be sets .

3. After the voltage or current is selected, and then the long keys for more than 3 seconds ,and automatically save the sets data .

4. Wait for 30 seconds and exit to return to the first screen .

Safe handing of lithium battery guide

Schematic Diagram of solution

Tools

The following tools are required to install the battery pack

• Wire cutter
  

• Crimping Modular Plier

• Screw Driver
  

NOTE
Use properly insulated tools to prevent accidental electric shock or short circuits. If insulated tools are not available, cover the entire exposed metal surfaces of the available tools, except their tips, with electrical tape.
Safety Gear
It is recommended to wear the following safety gear when dealing with the battery back.

• Insulated gloves

• Safety goggles
  

• Safety shoes

Installation

One set Lithium battery product connects to Inverter

Operation instructions:

1. Use the RJ45 communication cable of the accessory, connect the 485 communication port of the inverter to the 485 communication port of the lithium battery .

2. Set the communication device address of the lithium battery pack to 1

3. Set the inverter’s battery type to LIB mode .
   Lib-protocol compatible battery| Select “LIb” if using Lithium battery compatible to Lib protocol. I  selected, programs of 11, 17, 18 and 19 will be automatically set up. No need for further setting.
   ---|---

Multiple sets of Lithium battery product connects to Inverter

Operation instructions:

1. Use the RJ45 communication cable of the accessory, connect the 485 communication port of the inverter to the 485 communication port of the first lithium battery .

2. Then use the RJ45 communication cable of the accessory, connect the 485 communication port of the 1st lithium battery to the 485 communication port of the 2nd lithium battery

3. Set the communication device address of the 1st lithium battery pack to 1 .

4. Set the communication device address of the 2nd lithium battery pack to 2 .

5. Set the inverter’s battery type to LIB mode.
   Lib-protocol compatible battery| Select “LIb” if using Lithium battery battery ‘compatible to Lib protocol. If Y selected, programs of 11, 17, 18 and e 19 will be automatically set up. need for further setting.
   ---|---

Installation Location
Make sure that the installation location meets the following conditions.

• The area is completely water proof.
• The floor is flat and level.
• There are no flammable or explosive materials.
• The ambient temperature is within the range from 0°C to 50°C.
• The temperature and humidity is maintained at a constant level.
• There is minimal dust and dirt in the area.
• Use fitting screws to fix the box on the wall.

CAUTION –

If the ambient temperature is outside the operation range, the battery pack stops operation to protect itself. The optimal temperature range for the battery pack to operate is 0°C to 50°C . Frequent exposure to harsh temperature may deteriorate the performance and life of the battery pack .

Trouble Shooting Steps

Problem determination based on:

1. Whether the battery can be turned on or not.
2. If battery is turned on, check the LED light is off, flashing or lighting.
3. If the LED light is off, check whether the battery can be charge/discharge or not.

Preliminary determination steps:

1. Battery cannot turn on, switch on the lights are all no lighting or flashing.If the battery external switch is on, the LED light is flashing, and the external power supply voltage is 48V or more, the battery still unable to turn on, please contact distributor.
2. The battery can be turned on, but red light is lighting, and cannot charge or discharge. If the red light is lighting, that means system is abnormal, please check values as following:

a) Temperature: Above 50°C or under -10°C, the battery could not work. Solution: to move battery to the normal operation temperature range between -10°C and 50°C.
b) Current: If current is greater than 150A, battery protection will turn on .
Solution: Check whether current is too large or not, if it is, to change the setting on power supply side.
c) High Voltage: If charging voltage above 29.2Vdc(24V system) or 58.4Vdc(48V system), battery protection will turn on.
Solution: Check whether voltage is too high or not, if it is, to change the setting on power supply side.
d) Low Voltage: When the battery discharges to 22.4Vdc(24V system) 44.8Vdc(48V system) or less, battery protection will turn on.
Solution: Charge the battery for some time, the LED light turn off.

The battery cannot be charged or discharged

1. Cannot be charged:
   Disconnect the power cables, measure voltage on power side, if the voltage is 25.6~27.0Vdc(24V system) or 51.2~54.0Vdc(48V system) ,restart the battery, connect the power cable and try again, if still not work, turn off battery and contact distributor.

2. Unable to discharge:
   Disconnect the power cables and measure voltage on battery side, if it is under 22.3 V or 44.5V, please charge the battery. If voltage is above 24V or 48V and still cannot discharge, turn off battery and contact distributor.

Emergency Situations

1. Leaking Battery
   If the battery pack leaks electrolyte, avoid contact with the leaking liquid or gas.If one is exposed to the leaked substance, immediately perform the actions described below .
   Inhalation: Evacuate the contaminated area, and seek medical attention.
   Contact with eyes: Rinse eyes with flowing water for 15 minutes, and seek medical attention.
   Contact with skin: Wash the affected area thoroughly with soap and water, and seek medical attention.
   Ingestion: Induce vomiting, and seek medical attention.

2. Fire
   NO WATER! Only dry powder fire extinguisher can be used; if possible, move the battery pack to a safe area before it catches fire.

3. Wet battery
   If the battery pack is wet or submerged in water, do not let people access it,and then contact an authorized dealer for technical support.

4. Damaged Battery
   Damaged battery are dangerous and must be handled with the utmost care. They are not fit for use and may pose a danger to people or property. If the battery pack seems to be damaged pack it in its original container, and then return it to an authorized dealer.

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