Felicitysolar LiFePO4 Battery System for Households

1. ABOUT THIS MANUAL

1.1 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.

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

1.3 Safety Instructions

• WARNING: This chapter contains important safety and operating instructions. Read and keep this manual for future reference.
• Before using the unit, read all instructions and cautionary markings on the unit, the batteries and all appropriate sections of this manual.
• CAUTION --- To reduce risk of injury, damage, even burst. please use it following using manual. In case of causing personal injury or damage, Felicitysolar is not responsible.
• 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.
• To reduce risk of electric shock, disconnect all wirings before attempting any maintenance or cleaning. Turning off the unit will not reduce this risk.
• CAUTION - Only qualified personnel can install this device with inverter.
• For optimum operation of this battery, please follow required spec to select appropriate cable size.
• 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.
• Please strictly follow installation procedure.
• To support full output load, at least 2 sets of FLA48V for inverter larger than 6KVA in parallel connection.
• GROUNDING INSTRUCTIONS - This System should be connected to a permanent grounded wiring system. Be sure to comply with local requirements.
• NEVER cause AC output and DC input short circuited. Do not connect to the mains when DC input short circuits.
• Warning!! Only qualified service persons are able to service this device.
• Battery should be installed indoor and kept away from water, high temperature mechanical force and flames.
• Do not install the battery in any environment of temperature below 0°C or over 55°C, and humidity over 80%.
• Do not put any heavy objects on the battery.

1.4 Can be connected in parallel

• The batteries can be connected in parallel. Series connection is not allowed. Use in upright position only.
• The batteries are not allowed to connected with PWM controller for charging.

Special Attention: Due to the built-in protection board of the lithium battery pack is with 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 main power or solar energy is available.

2. INTRODUCTION

The battery system is mainly used for solar power systems in family houses. It also has a switch to control the battery easily and protect your household application timely.

2.1 Features

• LiFePO4: Higher safe performance and longer cycle life.
• Multiple Protection: Built-in smart BMS, Breaker and Fuse.
• Flexible Installation: Wall-Mounted or Floor-Mounted.
• Wide Compatibility: Compatible with leading inverter brands.
• High Scalability: Capacity up to 76.8kWh.
• Long Warranty: 7 Years.
• Built-in WIFI: Remote monitor of the battery pack data.

2.2 Product Overview

A diagram shows the Felicitysolar LiFePO4 Battery System with labels A through I indicating different components: A - LCD display, B - Power On/Charging indicator, C - Breaker, D - Fuse, E - Earth wire, F - Battery Positive +, G - Switch, H - Communication port, I - Battery Negative -.

2.3 Specifications

[1] Recommend charge/discharge current/power is affected by temperature and SOC.

[2] Test conditions: 0.2C Charging/Discharging @25°C, 80% DOD.

2.4 Recommended Settings

Lithium battery packs are not the same as lead-acid batteries. For devices connected to the battery pack for charging or discharging (such as inverters, MPPT charge controllers, or UPS), please implement pre-settings as recommended below before launching them.

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

3. Installation Procedure

3.1 Setup Script

A diagram illustrates wall mounting: first fix wall components, then lift the machine onto them. Another diagram shows floor mounting: place the chassis against the wall and secure with fixing components.

3.2 Tools

Images show the following tools: Screw Driver, Crimping Modular, Safety Shoes, Multimeter, Safety Gloves, Safety Goggles, Plier, Ribbon, Electric drill.

3.3 Floor Installation with Base

Installation Location Requirements: Diagrams show required clearances for wall mounting (90° angle, 300mm minimum distance from ground) and floor mounting (90° angle, 300mm minimum distance from ground and wall).

3.4 Installation Environment

Diagrams indicate ideal environmental conditions: maximum temperature +50°C, minimum temperature -10°C, and humidity between +5% to +95%.

3.5 Battery system switch operation

Power on battery system: Turn the breaker to the "ON" state, press the POWER button for 1 second. Wait for the battery system LED light to illuminate, indicating the boot is complete.

Power off battery system: Turn the breaker to the "OFF" state to turn off the entire battery system.

4. INSTALLATION

4.1 Unpacking and Inspection

Before installation, please inspect the unit. Ensure that nothing inside the package is damaged. The following items should be included:

4.2 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 be adhered to the wall vertically.
• Be sure to keep other objects and surfaces as shown in the right diagram to guarantee sufficient heat dissipation and to have enough space for removing wires.

Please follow below steps to implement battery connection:

1. Assemble 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 for inverter larger than 8KVA in parallel connection.

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

4.3 Connection for Parallel Mode

The FLA series battery supports parallel connection for expansion. If you need one more battery bank to work in parallel mode, connect the battery as shown in PIC 1.

A diagram illustrates the parallel connection of three battery packs, showing main circuit connections and battery pack interconnections.

Step: 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 is shown below.

A diagram shows the connection for an off-grid system with PV panels, MPPT charge controller, and the battery system.

5. OPERATION

Once the batteries are connected well, close the breaker to the ON position, and press the On/Off button to enable the output of the battery pack.

5.1 Switch On/Off

1. Switch on: Press the On/Off button to switch on the battery. The battery will perform a self-inspection before enabling output. The LCD will show the SOC.
2. Switch off: Press and hold the On/Off button for 1 to 3 seconds; the battery will shut down directly.

Description for Communication port

DIP SWITCH

5.2 LCD Display Icons

BMS type
Eg: Rated voltage is "51.2V"; model is "5.12KWH", "01" is the countdown.

BMS data
Eg: "52.0V" / "3.90KW" / "70%" refers to battery voltage, power and SOC.

BMS data
Eg: "52.0V" / "50A" / "70%" refers to battery voltage, current and SOC.

BMS fault code / flag
Eg: "52.0V" / "C09" / "70%" are battery voltage, fault code and SOC respectively, and Fault icon is constant.

5.3 The BMS Information Page

The basic information will be displayed in turn after power on.

BMS power on information
BMS information is all on.

BMS version
Eg: "515" is the software version; "400" is the IAP version and temporary version; "02" is the countdown.

5.4 Fault Code Table

5.5 DIP Switch SW1-SW4 Description

Remark: 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.

Remark: 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.

Remark4: When the battery pack ID is set to 1-15, it means that the parallel operation is required, and it is necessary to detect whether the parallel condition is satisfied.

Remark: 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.

6. EMERGENCY SITUATIONS

Felicitysolar cannot guarantee battery absolute safety.

6.1 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 1230, FM-200, or dioxide extinguisher

Batteries may explode when heated above 150°C. KEEP FAR AWAY from the battery if it catches fire.

6.2 Leaking Batteries

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 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.

6.3 Wet Batteries

If the battery pack is wet or submerged in water, do not let people access it, and contact your supplier for help.

6.4 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.

6.5 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

Felicitysolar does not assume any direct or indirect liability for any product damage or property loss caused by the following conditions:

• 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 the 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.