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

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, or even burst, please use it following this manual. In case of causing personal injury.
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 an inverter.
6. For optimum operation of this battery, please follow required specifications to select 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 installation procedure.
9. To support full output load, at least 2 sets of FLA48V for inverters 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 short circuited. 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 with temperature below 0°C or over 55°C, and humidity over 80%.
15. Do not put any heavy objects on the battery.

1.4 Can be connected in parallel

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

Special Attention: Due to the built-in protection board of the lithium battery pack 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 fail to be activated by the AC or PV activation cable (it requires a special charging activation method), so it 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 with solar power systems for family houses. It also has a controller to manage the battery easily and protect household applications timely.

2.1 Features

• LiFePO4: Higher safe performance and longer cycle life.
• Multiple Protection: Built-in smart BMS and Breaker.
• Flexible Installation: Wall-Mounted or Floor-Mounted.
• Wide Compatibility: Compatible with leading inverter brands.
• High Scalability: Capacity up to 187.5kWh.
• Long Warranty: 7 Years.

2.2 Product Overview

The product is a dark grey rectangular unit with a display screen on the front. The display shows numerical values and icons. Below the display, there is a circular power button with an LED indicator. The unit's side features various ports and connectors for communication and power cables. These include a breaker, fuse, earth wire connection, battery positive and negative terminals, a switch, and communication ports (RS485/CAN).

3. Installation Procedure

3.1 Setup Script

For wall-mounted installation: First, fix the wall-mounted components to the wall, and then lift the machine onto the wall-mounted components to secure it.

Note: Do not use wall-mounted components, place the chassis against the wall and secure it with fixing components for floor installation.

3.2 Tools

The following tools are required for installation:

• Screw Driver
• Crimping Modular
• Safety Shoes
• Multimeter
• Safety Gloves
• Safety Goggles
• Plier
• Ribbon
• Electric drill

3.3 Floor Installation with Base

Installation Location Requirements

The unit can be installed on the floor with a base. For wall-mounted installation, ensure a 90° angle from the wall. For floor installation, maintain a distance 'd' between 300mm and 500mm from the wall. The unit should be placed on the ground, maintaining a 90° angle to the floor. For two-row installations, ensure adequate spacing.

3.4 Installation Environment

The ideal installation environment should maintain a temperature range of -10°C to +50°C and a relative humidity of +5% to +95%.

3.5 Battery system switch operation

The battery system has a power switch with ON/OFF positions and a power button with an LED indicator.

Power on battery system:

Turn the breaker to the "ON" state, press the POWER button for 1 second, and wait for the battery system LED light to light up, indicating that 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, inspect the unit. Be sure that nothing inside the package is damaged. You should have received the following items inside the package:

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 clear 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 inverters larger than 8KVA in parallel connection.

Note: If the battery needs to 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 more battery banks to work in parallel mode, connect them as shown in the schematic diagram. The schematic diagram illustrates three battery packs connected in parallel to a main circuit via BTCB0606/BTCB0303 components.

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 pure off-grid systems, 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 shows the battery unit connected to a charge controller.

5. OPERATION

Once the batteries are connected well, close the breaker to the ON block, 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, then the battery will do 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

The communication port is an 8-pin connector. The pin assignments are:

DIP SWITCH

The DIP switch has two main settings:

5.2 LCD Display Icons

The LCD display shows various information and icons:

Display Information

• Voltage (V): Indicates battery voltage.
• Current (A) / Watt (KW): Indicates battery current or watt. Short press the switch button to switch between watt and current display.
• State of Charge (SOC) (%): Indicates SOC.

Battery Information

• Battery Level Icon (?): Indicates battery level by 0-20%, 21-40%, 41-60%, 61-80%, 81-100%. When charging, the icon is displayed with a running animation; when discharging, the icon is constant.

Fault Information

• Fault Icon (❗): Indicates a fault.

Set Information

• Settings Icon (⚙️): Indicates settings.

5.3 BMS Information Page

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

BMS power on information

BMS information is all on, showing voltage, current/watt, and SOC.

BMS version

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

5.4 Fault Code Table

This table lists fault codes, their descriptions, and troubleshooting steps:

5.5 DIP Switch SW1-SW4 Description

The DIP switches SW1-SW4 are used to set the communication address (ID) of the battery pack. SW5 indicates connection status.

Remark 1: 1 in SW1-SW5 indicates ON status, and 0 indicates OFF status.

Remark 2: When multiple battery packs communicate, the last battery pack SW5 needs to be in the ON status, otherwise the communication may have interference.

Remark 3: 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.

Remark 4: When the battery pack ID is set to 1-15, it means that parallel operation is required, and it is necessary to detect whether the parallel condition is satisfied.

Remark 5: 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

Felicity 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. They 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

Felicity does not assume any direct or indirect liability for 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 end user's premises.
• Transport damage (including painting scratch caused by movement inside packaging during shipping). A claim should be made directly to the shipping or insurance company.