Ver Tech LiFePO4 Lithium 48V 250ah Rechargeable Battery User Guide

Ver Tech LiFePO4 Lithium 48V 250ah Rechargeable Battery

Product Information

The LiFePO4 Battery System for Households is designed to provide reliable power storage for residential use. It is compatible with solar power systems and comes with a controller for easy battery management. The system features LED display, power on/charging indicator, switch, breaker, communication port, and earth wire for enhanced functionality and safety. It is designed for parallel connection of batteries and has a usable capacity, nominal voltage, voltage range, max. charge & discharge current, recommend charge & discharge current, max. output power, recommend output power, DOD, modules connection, communication, ingress protection, cycle life, working temperature range, net weight, gross weight, product dimension, and package dimension as specified in the specifications.

Product Usage Instructions

1. Before using the LiFePO4 Battery System, read all instructions and cautionary markings on the unit, batteries, and the user manual.
2. Do not disassemble the battery. If service or repair is required, take it to a qualified service center to avoid any risks.
3. To reduce the risk of electric shock, disconnect all wirings before performing any maintenance or cleaning. Turning off the unit does not eliminate the risk.
4. Avoid sparks or short circuits that could cause an explosion or fire.
5. Strictly follow the installation procedure provided in the user manual.
6. For an inverter larger than 6KVA, at least 2 sets of LPBF48V batteries should be connected in parallel to support full output load.
7. The system should be connected to a permanent grounded wiring system following local requirements.
8. Never cause AC output and DC input to short-circuit. Do not connect to the mains when DC input is present.
9. The batteries can be connected in parallel but not in series. Use them in an upright position only.
10. Do not connect the batteries with the PWM controller for charging.

Purpose

• This manual describes the introduction, installation, operation and emergency situations of the battery bank.
• Please read this manual carefully before installations and operations. Keep this manual for future reference.

Scope
This manual provides safety and installation guidelines as well as information on tools and wiring.

Safety Instructions

WARNING:
This chapter contains important safety and operating instructions. Read and keep this manual for future reference.

1. Before using the unit, read all instructions and cautionary markings on the unit, the batteries, and all appropriate sections of this manual.
2. CAUTION –– To reduce risk of injury, damage, even burst. please use it following user manual. In case of causing personal
3. Do not disassemble the battery. Take it to a qualified service center when service or repair is required. Incorrect re-assembly may result in a risk of fire.
4. To reduce risk of electric shock, disconnect all wirings before attempting any maintenance or cleaning. Turning off the unit will not reduce this risk.
5. CAUTION – Only qualified personnel can install this device with the inverter.
6. For optimum operation of this battery, please follow the required spec to select the appropriate cable size.
7. Be very cautious when working with metal tools on or around batteries. A potential risk exists to drop a tool to spark or short circuit batteries or other electrical parts and could cause an explosion or fire.
8. Please strictly follow the installation procedure.
9. To support full output load, at least 2 sets of LPBF48V for inverter larger than 6KVA in parallel connection.
10. GROUNDING INSTRUCTIONS – This System should be connected to a permanent grounded wiring system. Be sure to comply with local requirements.
11. NEVER cause AC output and DC input to short-circuit. Do not connect to the mains when DC input short circuits.
12. Warning!  Only qualified service persons are able to service this device.
13. Battery should be installed indoors and kept away from water, high-temperature mechanical force, and flames.
14. Do not install the battery in any environment of temperature below ۰°Cor over 55°C, and humidity over 80% .
15. Do not put any heavy objects on the battery.

Can be connected in parallel

1. The batteries can be connected in parallel. Series connection is not allowed. Use in an upright position only.
2. The batteries are not allowed to be connected to the PWM controller for charging.

Special Attention: Due to the built-in protection board of the lithium battery pack is with an over-discharge protection function, it is strongly recommended to stop using the load when the battery pack is over-discharged. The battery pack cannot be repeatedly activated for discharge. Or the battery may be failed to be activated by the AC or PV activation cable ( It requires a special charging activation method),so cannot be charged. Therefore, when the battery pack is low power, please charge the battery as soon as possible when the main power or solar energy is available.

INTRODUCTION

The battery system main uses a Solar power system for the Family house. It also has a with to control the battery easily and protect our Household applications timely.

Features

• • Iron phosphate-lithium power battery
  • Long warranty period:٥ years
  • Higher energy density, smaller volumn for household.
  • Support connected in parallel mode for expansion

• Photovoltaic system: This battery pack is designed for household photovoltaic systems.

• Battery management system (BMS): The battery packs built-in BMS monitors its operation and prevents the battery from operating outside design limitations.

• Expandability: This battery pack can be easily expanded by adding expansion battery packs in parallel connection.

Product Over View

1. LED display
2. Power On/Charging indicator
3. Battery Negative –
4. Battery Positive +
5. Switch
6. Communication port
7. Earth wire
8. Breake

Specifications

Recommended Settings
Lithium battery pack is not same as lead-acid battery, so for the devices which you connect with the battery pack for charging or discharging, such as inverters, MPPT charger controllers or UPS, please implement pre-settings as recommended settings as below before you launched them.

Notes: “N” means the number of battery packs connected in parallel.

INSTALLATION

Unpacking and Inspection
Before installation, please inspect the unit. Be sure that nothing inside the package is damaged. You should have received the following items inside of package.

Mounting the Unit

Consider the following points before selecting where to install:

• Do not mount the battery on flammable construction materials.
• The ambient temperature should be between 0°C and 45°C to ensure optimal operation.
• The recommended installation position is to adhere to the wall vertically.
• Be sure to keep other objects and surfaces as shown in the right diagramtoguaranteesufficientheatdissipation and to have enough space for removing wires.

Please follow the below steps to implement battery connection:

1. Assemble the battery ring terminal based on recommended battery cable and terminal size.
2. Connect all battery packs as units require. It’s suggested to connect at least 2 sets of LPBF48V for inverters larger than 6KVA in parallel connection.

Note:
If you need the battery wake-up when the grid is back, connect the battery to grid using the power adapter and communication line 1 shown in the package list.

Connection for Parallel Mode
The LPBF series battery support to be connected in parallel for expansion. If you need one more battery bank work in parallel mode, connect the battery as shown in PIC 1.

Step 1:
The schematic diagram of the parallel connection of three battery packs is shown in Figure 1.

Note:
After completing the above steps, arbitrarily select the positive and negative poles of one of the battery packs to output. After confirming the correct connection of the inverter, controller, and battery, you can turn on any of the switches and
use the battery group happily.

For a pure off grid system, the PV awake wire needs to be connected with the MPPT charge controller if the battery pack is charged by solar panels only. The connection diagram as below:

OPERATION

Once the batteries are connected well, simply press On/Off button to enable the output of the battery pack.

Switch On / Off

1. Switch on: press On/Off button to switch on the battery, then the battery will do self-inspection before enable output. The LED will show the SOC.
2. Switch off: press and hold On/Off button for 3 seconds, the battery will shut down directly.

Description for Communication port

| 1| Trigger-GND
2| Trigger-VCC
3| NC
4| COMM-GND
5| RS485-B
6| RS485-A
7| CANL
8| CANH
DIP SWITCH

| 1 -4| Communication Address
5| Termination Resistor

Description for LED
The SOC of the battery is shown by the LED

Note:
The battery needs to be fully charged at least once in one month to ensure accurate SOC calculation.

ON / OFF or SOC Led (Mode or SOC)

__

__

__

__

FAULT

| __

__

__

__

OFF

| __

__

__

__

ON

| ON| OFF| OFF| OFF| BATTERY VOLTAGE HIGH
OFF| ON| OFF| OFF| BATTERY VOLTAGE LOW
ON| ON| OFF| OFF| CELL VOLTAGE HIGH
OFF| OFF| ON| OFF| CELL VOLTAGE LOW
ON| OFF| ON| OFF| CHARGING CURRENT HIGH
OFF| ON| ON| OFF| DISCHARGING CURRENT HIGH
ON| ON| ON| OFF| BMS TEMPERATURE HIGH
OFF| OFF| OFF| ON| BMS TEMPERATURE LOW
ON| OFF| OFF| ON| CELL TEMPERATURE HIGH
OFF| ON| OFF| ON| CELL TEMPERATURE LOW
ON| ON| OFF| ON| CURRENT SENSOR ABNORMAL

DIP switch SW1-SW4 Description

DIP switch SW1 -SW4 Description ①

Sw1| SW2| SW3| SW4| Remarks| DIP switch SW5 Description②
0| 0| 0| 0| means ID=0,communication address is0x00/0x1 0③| SW5| Remarks
1| 0| 0| 0| means ID=1 ,communication address is0x01 ④| __

1

| means connect

1 20Ω resistor

0| 1| 0| 0| means ID=2,communication address is0x02
1| 1| 0| 0| means ID=3,communication address is0x03| __

0

| means disconnect

1 20Ω resistor

0| 0| 1| 0| means ID=4,communication address is0x04
1| 0| 1| 0| means ID=5,communication address is0x05|
0| 1| 1| 0| means ID=6,communication address is0x06
1| 1| 1| 0| means ID=7,communication address is0x07
0| 0| 0| 1| means ID=8,communication address is0x08
1| 0| 0| 1| means ID=9,communication address is0x09
0| 1| 0| 1| means ID=1 0, communication address is0x0A
1| 1| 0| 1| means ID=1 1, communication address is0x0B
0| 0| 1| 1| means ID=1 2, communication address is0x0C
1| 0| 1| 1| means ID=1 3, communication address is0x0D
0| 1| 1| 1| means ID=1 4, communication address is0x0E
1| 1| 1| 1| means ID=1 5, communication address is0x0F
Remark①: 1 in SW1 -SW5 indicates ON status, and 0 indicates OFF status.
Remark②: When multiple battery packs communicate, the last battery pack SW5 needs to be in the ON status, otherwise the communication may have interference.
Remark③: When the battery pack ID is set to 0, it means stand-alone operation, and it is not necessary to detect whether the parallel condition is satisfied ⑤
Remark④: When the battery pack ID is set to 1 -1 5, it means that the parallel operation is required, and it is necessary to detect whether the parallel condition is satisfied ⑤
Remark⑤: The parallel condition is that the difference between the battery voltage of the local battery and all the battery pack voltages is <3V, otherwise wait until the condition is satisfied

EMERGENCY SITUATIONS

VerTech cannot guarantee eStrong battery absolute safety.

Fire
In case of fires, make sure that the following equipment is available near the system.

• SCBA (self-contained breathing apparatus) and protective gear in compliance with the Directive on Personal Protective Equipment 89/686/EEC.
• NOVEC 1 230, FM-200, or dioxide extinguisher
• Batteries may explode when heated above 1 50°C. KEEP FAR AWAY from the battery if it catches fire.

Leaking Batteries
If the battery pack leaks electrolyte, avoid contact with the leaking liquid or gas. If one is exposed the leaked substance, immediately perform the cations described below.

• Inhalation: Evacuate the contaminated area, and seek medical attention.
• Contact with eyes: Rinse eyes with running water for 5 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.

Wet Batteries
If the battery pack is wet or submerged in water, do not let people access it, and contact your supplier for help. Damaged Batteries Damaged batteries are not fit for use and are dangerous and must be handled with the utmost care. It may leak electrolyte or produce flammable gas. If the battery pack seems to be damaged, pack it in its original container, and then return it to your supplier.

Warranty

Products that are operated strictly in accordance with the user manual are covered by the warranty. Any violation of this manual may void the warranty.

Limitation of Liability
Any product damage or property loss caused by the following conditions, VerTech does not assume any direct or indirect liability.

• Product modified, design changed or parts replaced.
• Changed, or attempted repairs and erasing of series number or seals;
• System design and installation are not in compliance with standards and regulations;
• The product has been improperly stored in end user’s premises;
• Transport damage (including painting scratch caused by movement inside packaging during shipping). A claim should be made directly to shipping or insurance company.

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