Pylontech US3000 Plus Lithium-Iron Phosphate Battery Product Manual

1. Safety Precautions

Reminding

• It is very important to read this user manual carefully before installing or using the battery. Failure to do so or to follow instructions and warnings can result in electrical shock, serious injury, death, or battery damage.
• If stored for a long time, charge the battery every six months to maintain SOC no less than 90%.
• Recharge the battery within 12 hours after full discharge.
• Do not expose cables outside.
• Disconnect all battery terminals for maintenance.
• Contact the supplier within 24 hours if any abnormality is observed.
• Do not use cleaning solvents to clean the battery.
• Do not expose the battery to flammable or harsh chemicals or vapors.
• Do not paint any part of the battery.
• Do not connect the battery directly with PV solar wiring.
• Warranty claims are excluded for direct or indirect damage resulting from the above actions.
• Foreign objects are prohibited from being inserted into any part of the battery.

Warning

1.1 Before Connecting

• After unpacking, check the product and packing list. Contact the retailer if the product is damaged or parts are missing.
• Before installation, ensure the grid power is cut off and the battery is turned off.
• Wiring must be correct; do not mistake positive and negative cables and ensure no short circuit with external devices.
• Connecting the battery directly to AC power is prohibited.
• The embedded BMS is designed for 48VDC; do not connect batteries in series.
• The battery system must be well grounded with resistance less than 1Ω.
• Ensure the electrical parameters of the battery system are compatible with related equipment.
• Keep the battery away from water and fire.

1.2 In Using

• If the battery system needs to be moved or repaired, power must be cut off and the battery completely shut down.
• Connecting the battery with a different type of battery is prohibited.
• Using batteries with a faulty or incompatible inverter is prohibited.
• Disassembling the battery (QC tab removed or damaged) is prohibited.
• In case of fire, only a dry powder fire extinguisher can be used; liquid fire extinguishers are prohibited.
• Do not open, repair, or disassemble the battery except by Pylontech staff or authorized personnel. Pylontech is not responsible for consequences arising from violations of safety operations or design standards.

2. Introduction

The US3000 Plus lithium iron phosphate battery is a new energy storage product developed by Pylontech, supporting reliable power for various equipment and systems. It is ideal for high-power applications, limited installation spaces, restricted load-bearing, and long cycle life requirements. The US3000 Plus features a built-in Battery Management System (BMS) that monitors cell voltage, current, and temperature, and balances cells during charging and discharging to extend cycle life. Multiple batteries can be connected in parallel to expand capacity and power duration.

2.1 Features

• The module is non-toxic, non-polluting, and environmentally friendly.
• Cathode material is made from LiFePO4, ensuring safety performance and long cycle life.
• The Battery Management System (BMS) includes protection functions for over-discharge, over-charge, over-current, and high/low temperature.
• The system automatically manages charge and discharge states and balances current and voltage for each cell.
• Flexible configuration allows multiple battery modules to be connected in parallel for expanding capacity and power.
• An adopted self-cooling mode significantly reduces system noise.
• The module has low self-discharge (up to 6 months without charging on the shelf), no memory effect, and excellent performance in shallow charge and discharge cycles.
• The working temperature range is -10°C to 50°C (Charging 0-50°C; Discharging -10-50°C), with excellent discharge performance and cycle life.
• The small, lightweight, standard 19-inch embedded design module is convenient for installation and maintenance.

2.2 Specifications

2.3 Equipment Interface Instruction

This section details the front and back panel interface functions.

US3000 Plus Product Front Interface

Diagram Description: An image of the front panel of the US3000 Plus battery unit, showing various ports, switches, and indicator lights, including Power, ON/OFF, ADD, Console, CAN/RS485, Link Port 0/1, Start, Run, Alarm, SOC, and Power Terminals.

Power Switch

Turns the battery BMS standby ON/OFF. No power output when OFF.

ON/OFF LED

Green LED indicates the Power Switch is ON and BMS has electricity (no power output).

RUN LED

Green LED indicates the battery is running. (Note: US3000B does not have this LED).

Alarm LED

Red LED flashes to indicate an alarm, or lights up to show the battery is under protection.

SOC LEDs

Six green LEDs indicate the battery's current capacity (each light represents 16.6% capacity).

Start Button

Press for more than 0.5 seconds to start the battery module and enable power output.

ADD Switch

Four ADD switches (Dip1-Dip4) are used to set the baud rate. The 'OFF' position is '0', and the 'ON' position is '1'. '0000' sets the baud rate to 115200, and '1000' sets it to 9600. These settings become active only after restarting the battery.

Group Address Number

The slave battery's address is assigned automatically. One master battery can supervise up to 7 slave batteries (maximum 8 batteries per group). Multiple battery groups require setting the master batteries' ADD switches.

Console Port

RJ11 port for RS232 communication (Baud Rate: 1200), used by manufacturers or professional engineers for debugging or service.

CAN Port

RJ45 port for CAN communication (Baud Rate: 500K), used for outputting battery information.

RS485 Port

RJ45 port for RS485 communication (Baud Rate: 9600 or 115200), used for outputting battery information.

Link Ports (0, 1)

RJ45 ports for communication between multiple parallel batteries.

Definition of RJ45 Port Pin

Diagram Description: An illustration of an RJ45 connector and plug, showing pin numbering.

Definition of RJ11 Port Pin

Diagram Description: An illustration of an RJ11 connector and plug, showing pin numbering.

Power Terminals

There are two pairs of terminals with the same function: one connects to equipment, and the other is for paralleling with other battery modules for capacity expansion. Each terminal can achieve charging and discharging functions for a single module. Power cables use water-proofed connectors. Press the Lock Button while pulling out the power plug.

Diagram Description: An illustration showing the power terminals and a lock button mechanism for disconnecting the power plug.

Dry Contact Terminal

Provides 1 way input and 3 ways output for dry contact signals.

Input: Wake up master battery, use 5-12V input DC, the circuit has a 10KΩ resistance (see 5.3.1).

LED Status Indicators

• RUN Lamp (No.6): Green. Long lighting when charging, flashes when discharging.
• ALM Lamp (No.7): Red. Flashes when there is an alarm, or is long bright if equipment fails or is protected.
• Battery capacity indicator (No.8): 6 green lamps, each representing 16.6% capacity.

LED Indicators Instructions

Indicator Status:

• ● : ON
• / : flash, on: 0.3s; off: 3.7s
• / : flash, on:0.5s; off: 1.5s

BMS Function

3. Safe Handling of Lithium Batteries Guide

3.1 Schematic Diagram of Solution

Diagram Description: A system diagram illustrating a typical solar energy setup. It shows a PV ARRAY connected to an INVERTER, which powers a LOCAL LOAD and charges a BATTERY MODULE. The PUBLIC GRID is also depicted as a potential power source.

3.2 Explanation of Symbol

DANGER

• DANGER LOW DC VOLTAGE INSIDE: Low DC Voltage Inside. ⚠️
• DANGER ARC FLASH & SHOCK HAZARD: Arc Flash & Shock Hazard. ⚡

Warnings and Instructions

• [icon: no-disconnect-repair] Do not disconnect, disassemble, or repair by yourself. (Ne pas débrancher, démonter ou réparer soi-même.)
• [icon: no-drop-impact] Do not drop, deform, impact, cut, or spear with a sharp object. (Ne pas échapper, déformer, frapper, couper ou transpercer avec un objet pointu.)
• [icon: no-flame] Do not place near open flame or incinerate. (Ne pas placer près des flammes nues ou incinérer.)
• [icon: no-heavy-objects] Do not sit or put heavy things on the battery. (Ne pas s'assoir ou mettre des objets lourds sur la batterie.)
• [icon: no-water] Keep away from moisture or liquid. (Tenir loin de l'humidité ou de tout liquide.)
• [icon: keep-away] Keep out of reach of children, animals, or insects. (Garder hors de la portée des enfants, des animaux ou des insectes.)
• Short circuit current rating: 300 A
• Maximum voltage: 55V
• IP20

3.3 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.

Diagram Description: Images of a wire cutter, a crimping modular plier, and a screwdriver.

3.4 Safety Gear

It is recommended to wear the following safety gear when dealing with the battery pack:

• Insulated gloves
• Safety goggles
• Safety shoes

Diagram Description: Images of a pair of insulated gloves, safety goggles, and safety shoes.

4. Installation

4.1 Package Items

Unpacking and check the Packing List

1) For battery module package:

Two power cables and one communication cable for each battery package.

Diagram Description: Illustrations showing two power cables (labeled 180) and one communication cable (labeled 180).

Grounding cable:

Diagram Description: An illustration of a grounding cable (labeled 1000).

2) For battery system connects to inverter:

Two long power cables (current capacity 120A) and one communication cable for each energy storage system.

Diagram Description: Illustrations showing two long power cables (labeled 2000, 3500) and one communication cable (labeled 210).

NOTE: These three long cables belong to the External Cable Kit, NOT the battery package. They are in a separate small cable box. Contact the dealer if anything is missing.

4.2 Installation Location

Make sure that the installation location meets the following conditions:

• The area is completely waterproof.
• 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 are maintained at a constant level.
• There is minimal dust and dirt in the area.

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

Installation

A. Put battery modules into cabinet and connect the cables:

Diagram Description: An image showing a cabinet with multiple Pylontech US3000 Plus battery modules installed inside.

Diagram Description: A detailed diagram illustrating the connection of cables between battery modules and to the inverter within a cabinet. Numbered points indicate connection steps: ① Put the battery into the cabinet; ② Drive the 4 pcs screws; ③ Connect the cables between battery modules; ④ Connect the cables to inverter.

B. Power On

Double-check all power and communication cables.

(1) Switch power on

Switch on all the battery modules.

Diagram Description: An image of the front panel of a battery module showing the POWER switch in the ON position and the ADD switches.

(2) Master/Slave Configuration

The battery module with an empty Link Port 0 is the Master Battery Module. Others are slaves. One master battery can be configured with a maximum of 7 slave batteries.

Diagram Description: Two diagrams showing battery modules. The top one highlights an empty 'Link Port 0', identifying it as the Master Battery Module. The bottom one shows a similar module, implying it's a slave.

(3) Power On Sequence

Press the red button of the master battery to power on. All battery LED lights will illuminate one by one, starting from the Master battery.

Diagram Description: A sequence of four diagrams showing the LED lights illuminating on multiple battery modules, indicating the power-on process initiated from the master battery.

If all battery LED lights turn on and then off, the battery system is good and working.

C. Installation with bracket

Diagram Description: An image showing two mounting brackets designed to hold battery modules.

1. Dismantle the 2 tabs on the battery.

Diagram Description: An illustration showing how to remove tabs from the battery unit.

2. Set the battery into 2 pcs Brackets from front and back.

Diagram Description: Illustrations showing how to slide a battery module into the mounting brackets, with labels for 'Front side', 'Back side', 'Stop Edge', and 'Set in'.

Push the Brackets (front and back) to the end of the Stop Edge.

Diagram Description: An illustration showing the brackets being pushed to their final position.

Diagram Description: An illustration showing how to align location pins on one bracket with location holes on another battery module for stacking. Arrows indicate the direction of stacking.

Aim at the 4 pairs of Location Pins and Location Holes, stack the batteries together. Hasp the 4 graffes together.

Diagram Description: An image showing multiple battery modules stacked vertically using the brackets.

Stacking Configurations:

• Maximum 4 batteries can be stacked athwart (vertically).
• One or two batteries can be stacked sidelong (horizontally).

Diagram Description: Two images showing different stacking configurations: one with four batteries stacked vertically, and another with two batteries stacked horizontally.

Cables connection and battery system start are the same as cabinet installation.

D. Multiple Battery Groups CAN/RS485 Communication Cable Connection

NOTE: After installation, register online for full warranty: http://www.pylontech.com.cn/service/support

NOTE:

• To start the system with grid power, turn on the inverter first to avoid current pulse from the inverter affecting the battery bank.
• Install a breaker between the battery bank and the inverter for system safety.
• All installation and operation must follow local electric standards.

Diagram Description: A diagram illustrating the connection of multiple battery groups using a Communication HUB. It shows how to connect up to 5 battery piles per HUB, with labels for Battery Groups 1-5, Master Battery, Baud Rate, and ADD settings. The diagram also indicates the connection to the inverter.

Diagram Description: A similar diagram illustrating the CAN Communication Cable Connection for multiple battery groups, showing the Communication HUB, battery piles, and connections to the inverter.

5. Trouble Shooting Steps

5.1 Problem determination based on:

1. Whether the battery can be turned on or not.
2. If the battery is turned on, check if the red light is off, flashing, or lighting.
3. If the red light is off, check whether the battery can be charged/discharged or not.

5.2 Preliminary determination steps:

1. Battery cannot turn on, lights are off or flashing: If the external switch is ON, the RUN light is flashing, and the external power supply voltage is 48V or more, but the battery is still unable to turn on, please contact the distributor.
2. Battery can be turned on, but red light is lighting (cannot charge or discharge): If the red light is lighting, the system is abnormal. Check the following values:
   • a) Temperature: Above 50°C or below -10°C, the battery cannot work. Solution: Move the battery to the normal operating temperature range (-10°C to 50°C).
   • b) Current: If current is greater than 100A, battery protection will activate. Solution: Check if the current is too high and adjust power supply settings if necessary.
   • c) High Voltage: If charging voltage is above 54V, battery protection will activate. Solution: Check if the voltage is too high and adjust power supply settings if necessary.
   • d) Low Voltage: When the battery discharges to 44.5V or less, battery protection will activate. Solution: Charge the battery for some time; the red light should turn off.

If the fault cannot be located after checking the above points, turn off the battery and seek repair.

5.3 The battery cannot be charged or discharged

1. Cannot be charged: Disconnect power cables, measure voltage on the power side. If the voltage is 53-54V, restart the battery, reconnect the power cable, and try again. If it still does not work, turn off the battery and contact the distributor.
2. Unable to discharge: Disconnect power cables and measure voltage on the battery side. If it is below 44.5V, please charge the battery. If the voltage is above 48V and it still cannot discharge, turn off the battery and contact the distributor.

6. Emergency Situations

1) Leaking Batteries

If the battery pack leaks electrolyte, avoid contact with the leaking liquid or gas. If exposed, perform the following actions:

• 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 a dry powder fire extinguisher can be used. If possible, move the battery pack to a safe area before it catches fire.

3) Wet Batteries

If the battery pack is wet or submerged in water, do not let people access it. Contact Pylontech or an authorized dealer for technical support.

4) Damaged Batteries

Damaged batteries 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 appears damaged, pack it in its original container and return it to Pylontech or an authorized dealer.

NOTE: Damaged batteries may leak electrolyte or produce flammable gas. If such damage occurs, please contact Pylontech: service@pylontech.com.cn

Contact Information

Pylon Technologies Co., Ltd.

No. 73, Lane 887, ZuChongzhi Road, Zhangjiang Hi-Tech Park

Pudong, Shanghai 201203, China

T: +86-21-51317697 | F: +86-21-51317698

E: service@pylontech.com.cn

W: www.pylontech.com.cn