1. INTRODUCTION

This document describes the installation, commissioning, maintenance, and troubleshooting of the following low voltage battery: LPBA48100-OL. The battery chemistry is Lithium Iron Phosphate. This manual is designed for qualified personnel only. The tasks described in this document should be performed by authorized and qualified technicians only. After installation, the installer must explain the user manual to the end user.

2. SYMBOLS

3. SAFETY

Any work on the batteries should be handled by authorized technicians. Technicians must familiarize themselves with the contents of this manual before any maintenance or installation is carried out on the system.

4. HANDLING

• Do not expose battery to open flame.
• Do not place the product under direct sunlight.
• Do not place the product near flammable materials, as it may lead to fire or explosion in case of accident.
• Store in a cool and dry place with ample ventilation.
• Store the product on a flat surface.
• Store the product out of reach of children and animals.
• Do not damage the unit by dropping, deforming, impacting, cutting, or penetrating with a sharp object, as this may cause leakage of electrolyte or fire.
• Do not touch any liquid spilled from the product; there is a risk of electric shock or damage to skin.
• Always handle the battery wearing insulated gloves.
• Do not step on the product or place any foreign objects on it, as this can result in damage.
• Do not charge or discharge a damaged battery.

4.1 Installation

• After unpacking, check the product for damages and missing parts.
• Make sure that the inverter and battery are completely turned off before commencing installation.
• Do not interchange the positive and negative terminals of the battery.
• Ensure that there is no short circuit of the terminals or with any external device.
• Do not exceed the battery voltage rating of the inverter.
• Do not connect the battery to any incompatible inverter.
• Do not connect different battery types together.
• Please ensure that all batteries are grounded properly.
• Do not open the battery to repair or disassemble; only Felicity is allowed to carry out any such repairs.
• In case of fire, use only a dry powder fire extinguisher. Liquid extinguishers should not be used.
• Install the battery away from children or pets.
• Do not use the battery in a high static environment where the protection device might be damaged.
• Do not install with other batteries or cells.

5. RESPONSE TO EMERGENCY SITUATIONS

The batteries comprise multiple batteries connected in series and are designed to prevent hazards or failures. However, Felicity cannot guarantee their absolute safety. In case of exposure to the internal materials of the battery, the following recommendations should be carried out by the user:

• If inhalation has occurred, leave the contaminated area immediately and seek medical attention.
• If contact with eyes has occurred, rinse the eyes with running water for 15 minutes and seek medical attention immediately.
• If contact with the skin has occurred, wash the contacted area with soap thoroughly and seek medical attention immediately.
• If ingestion has occurred, induce vomiting and seek medical attention.

Fire Situation

Use a FM-200 or Carbon Dioxide (CO2) fire extinguisher to extinguish the fire if there is a fire in the area where the battery pack is installed. Wear a gas mask and avoid inhaling toxic gases and harmful substances produced by the fire.

5.1 Warning Labels

Warning labels and other relevant labels are attached on the battery pack.

Model: LPBA48100-OL

Nominal Voltage: 51.2V

Nominal Capacity: 100Ah

Nominal Energy: 5120Wh

Enclosure Protection Rating: IP65

Working Temperature Range: -10°C~+50°C

WARNINGS:

• Do not disassemble or alter the Pack to avoid heating up, explosion or fire.
• Do not use the Pack beyond specified conditions, or it may cause heating up, damage, or degrading its performance.
• Do not throw, drop, hit, drive in nail, or stamp on the Pack, or it may cause heating up, explosion, or fire.
• Do not put the Pack into fire. Do not use or leave it at places near fire, heaters, or high temperature sources, or it may cause over temperature, explosion, or fire.
• Do not put the Pack into water or wet it, or it may cause heating up, explosion, or fire.
• Do not connect the Pack's positive (+) and negative (-) terminals reversely, or it will cause short circuit, explosion, or fire.
• Do not connect the Pack's positive (+) and negative (-) terminals together or to any other metals, or it will cause short circuit, explosion, or fire.
• Take care! This Pack is heavy enough to cause serious injury.
• In case of electrolyte leakage, keep leaked electrolyte away from eyes and skin. If it has touched your eyes, please wash it with plenty of water and go to the hospital immediately.
• Keep out of the reach of children and animals.

6. PRODUCT INFORMATION

The LPBA48100-OL photovoltaic energy storage system is a 48V energy storage system based on lithium-ion ferrous phosphate battery. It is equipped with a customized battery management system (BMS), which is designed for energy storage applications of household photovoltaic power generation users. In the daytime, the surplus power of photovoltaic generation can be stored in the battery. At night or when necessary, the stored energy can be provided to the electrical equipment. It can improve the use efficiency of photovoltaic power generation, peak-load shifting, and provide emergency standby power.

6.1 Battery Module Specifications

7. ELECTRICAL CONNECTIONS

The batteries have been fitted with multiple protection systems to ensure the safe operation of the system. Some of the protection systems include:

• Inverter interface protection: Over voltage, Over current, External Short Circuit, Reverse Polarity, Ground Fault, Over Temp, In rush current.
• Battery Protection: Internal Short Circuit, Over voltage, over current, over temp, Under voltage. The battery system contains the following interfaces to allow it to connect and operate efficiently.

7.1 Battery System Features

The battery system contains the following interfaces to allow it to connect and operate efficiently.

7.2 Electrical Interface Description of LPBA48100-OL

Diagram shows the rear/side panel of the LPBA48100-OL battery system with labeled ports (A-M).

7.3 Switch On/Off

Power On: Close the breaker to the ON block, press and hold the Power switch for 1 second. The battery will perform a self-test before output. The LED will show SOC.

Power Off: Close the breaker to the OFF block; the battery will shut down directly.

7.4 Description for Communication port

Diagram shows the communication ports (LINK-0/LINK-1 and RS-485) on the battery system, with pin assignments detailed in tables.

LINK-0/LINK-1

RS-485

8. INSTALLATION

8.1 Items in the package

Please check if the following items are included with the package:

• 1: Wall bracket ?
• 2: Communication line ?
• 3: Communication line ?
• 4: Communication line ?
• 5: adapter ?
• 6: screw ?
• 7: PV wake up line ☀️?
• 8: User manual ?
• 9: Guarantee card ?
• 10: cables ?

8.3 Tools

The following tools are recommended for installation:

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

8.4 Floor installation with base

Installation Location Requirements

• 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.

Diagram shows the LPBA48100-OL unit with dimensions labeled A through I. It also illustrates recommended clearance around the unit for installation.

8.5 Install Environment

Diagram illustrating an ideal installation environment with sun and rain shade.

Note: Build sun & rain shade to avoid direct exposure to sunlight and rain.

8.6 Terminal Connection

Diagram showing how to connect the power terminals, with a note to press a specific position before disconnecting.

Note: Press the position indicated in the figure above before disconnecting the power terminal.

8.7 Battery system switch operation

Diagrams showing the breaker and power switch states for powering on and off the battery system.

Power on battery system: Turn the breaker to the "ON" state, press the POWER button 1 second, 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, turn off the entire battery system.

8.8 Commissioning

There are four LED indicators on the front of the battery packs to show its operating status.

SOC LED indication

Visual representation of the SOC LED indication levels.

8.9 ON/OFF or SOC Led (Mode or SOC)

8.10 DIP switch SW1-SW4 Description

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

Remark: 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.

Remark: 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.

9. WARRANTY

The warranty shall not cover defects caused by normal wear and tear, inadequate maintenance, handling, storage, faulty repair, modifications to the battery or pack by a third party other than Felicity, failure to observe the product specification provided herein, or improper use or installation, including but not limited to the following:

• Damage during transport or storage.
• Incorrect installation of battery into pack or maintenance.
• Use of battery or pack in inappropriate environment.
• Improper, inadequate, or incorrect charge, discharge, or production circuit other than stipulated herein.
• Incorrect use or inappropriate use.
• Insufficient ventilation.
• Ignoring applicable safety warnings and instructions.
• Altering or attempted repairs by unauthorized personnel.
• In case of force majeure (ex: lightning, storm, flood, fire, earthquake, etc.).
• There are no warranties implied or express other than those stipulated herein. Felicity shall not be liable for any consequential or indirect damages arising or in connection with the product specification, battery, or pack.

10. TROUBLESHOOTING AND MAINTENANCE

10.1 Maintenance

1. Regularly check whether the service environment of the battery meets the requirements, and the installation position should be far away from the heat source.
2. In case of one of the following situations, it needs to be charged in time:
   • The battery is often under charged;
   • The battery has been out of use or stored for more than 3 months.
3. Regularly check whether the battery and its supporting terminals, connecting cables, and indicator lights are normal.

10.2 Troubleshooting

When the red/green LED on the panel is flashing or normally on, it does not mean that the Battery system is abnormal; it may be just an alarm or protection. Please check the 'LED fault message' in chapter 7 for the detailed faulty definition before any troubleshooting steps. In general, the alarm indication is normal without manual intervention. When the alarm triggering state is removed, the Battery system will automatically return to normal use.

• Problem determination based on the following points:
  • Whether the red light on the LPBA48100-OL is on;
  • Whether the battery can be output voltage or not.
• Preliminary determination steps:

  If the battery system cannot work, when DC switch is ON and POWER is ON, the LED doesn't light up or flash, please consider contacting the local distributor.