V5 Pytes V Series LFP Battery User Manual

V5 Pytes V Series LFP Battery

Product Specifications

Battery Model| Power Terminal| Chemistry| Nominal Voltage| Voltage Range| Nominal Capacity| Nominal Energy| Unit Dimension| Unit Weight| Recommended Charge/ Discharge Current| Max Charge/ Discharge Current| Round-Trip Efficiency| Communication Protocol| Cycle Life| Calendar Life| Operating Temperature| Certificates| Storage Temperature| Heating System
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---
LFP| PHOENIX C-ES-FTB 25-70| LFP| 51.2V| 47.5V~57.6V| 100Ah| 5.12kWh| L442mmW530mmH140mm(3.2U) L17.40inW20.87inH5.51in(3.2U)| 44KG / 97lbs| 75A| 100A| 95%| RS485, CAN, WiFi (W/ Optional Device)| 6000 cycles| 10 years| -10°C to 55°C| UN38.3, CE, UL1973, UL9540A, UL9540, IEC62619, CEC, SGIP| -20°C to 60°C| Heating System [4]

Product Usage Instructions

Installation and Configuration:

• Installation Preparation: Ensure you have read the manual carefully and have necessary tools.
• Unpacking: Carefully unpack the battery pack and accessories.
• Installation: Follow the step-by-step guide provided to install the battery pack correctly.
• Starting/Shut Down: Follow the specified procedure to start or shut down the system.

Operating Environment:
The battery pack operates within a temperature range of -10°C to 55°C. Ensure the operating environment meets these conditions for optimal performance.

Communication:
The battery pack features RS232, RS485, and CAN ports for communication purposes. Refer to the manual for detailed communication protocols.

Troubleshooting:
If you encounter issues such as unable to start, charge, or discharge, refer to the troubleshooting section of the manual for solutions.

Frequently Asked Questions (FAQ)

• What should I do if the battery pack fails to charge?
  Check the connections, ensure proper installation, and verify that the charging current is within the specified limits.

• How can I extend the battery pack’s lifespan?
  Follow recommended charging and discharging practices, maintain proper operating temperatures, and adhere to storage guidelines.

• Can I connect multiple battery packs in parallel?
  Yes, you can connect multiple battery packs in parallel using the provided busbars for enhanced capacity.

Dear valued customer,

• Thank you for purchasing our Pytes V series LFP battery for home energy storage system. Our V series battery pack is designed to provide safe, high-performance energy storage solutions for a variety of applications. The compact and easy-to-install battery pack can be used as a basic building block in an energy storage system by connecting in parallel. It is widely used in residential, small commercial, and industrial energy storage systems, as well as telecommunication stations.
• We strongly recommend that you carefully read this manual before using the product. This manual provides all the necessary information on installation, usage of the V series battery pack. Please be advised that only qualified personnel(such as an electrician) should install and perform maintenance on the battery pack.
• It is important to keep in mind the boundaries of use, as described in this manual. The V series battery pack is not intended for use in medical or aviation-related applications, and should only be used for its intended purpose as described in this manual. Improper use of the battery pack will void the warranty of the product, and Pytes cannot be held responsible for any damage caused by improper or incorrect use of the product.
• For your safety and the safety of others, please follow all user safety instructions during the use of this product. This manual is intended for the installers and users of the V series battery pack.
• Please keep this manual in a safe location, as it is the original manual. For the latest version of all manuals, please visit our website at http://www.pytesgroup.com.
• Thank you again for choosing Pytes, and please do not hesitate to contact us if you have any questions or concerns about your V series battery pack.
• Best regards,
  • Pytes
  • Shanghai Pytes Energy CO., LTD.
  • Add: No.3492 Jinqian Road, Fengxian District, Shanghai, China.
  • Website: http://www.pytesgroup.com
  • Email: ess_support@pytesgroup.com

Before Using

Please read and follow these instructions carefully:

Warning

• This equipment should only be installed, operated by qualified personnel (electricians).
• The local safety regulations and relevant operating procedures must be followed during the installation, operation and maintenance of the equipment, otherwise the equipment may be damaged. The safety precautions mentioned in this manual are supplementary to the local safety regulations.

Caution

• Do not short-circuit the Li-ion battery.
• Follow the positive (+) and negative (-) marks on the Li-ion battery and equipment and ensure correct use. Do not reverse the Li-ion battery.
• Do not dismantle, crush, puncture, open, or shred the Li-ion battery.
• Before removing or reconnecting with the running system, make sure to turn off the power and shut down the system to avoid the risk of electric shock.
• Do not expose the Li-ion battery to heat or fire. In case of fire, use a dry powder fire extinguisher.
• Do not dismantle any part of the system without contacting PYTES or PYTES authorized technical engineers. System failure caused by such actions will not be covered by the warranty.
• Before operating the inverter, ensure that all batteries have been started up.
• The following precautions should be taken when working on batteries:
  • Shut down the power and loads before connecting or disconnecting battery terminals.
  • Do not wear any metal objects such as watches and rings.
  • Use tools with insulated handles.
  • Do not lay tools or metal parts on top of batteries.
  • Wear personal protective equipment.
  • Make sure the battery is well grounded. Contact with any part of a poorly grounded or ungrounded battery can cause electric shock and burns by high short-circuit current.
    The battery should be charged within 12 hours when it’s fully discharged or over-discharging protection mode is activated. Fail to follow this instruction will damage the battery and is not covered by warranty.

Danger

• Do not dispose of batteries in fire, as the batteries may explode.
• Keep the Li-ion battery away from water, dust, and contamination to avoid explosion or other harmful conditions that may even lead to personal injury.
• Do not open or mutilate batteries. Released electrolyte can be harmful to the skin and eyes and may be toxic.
• A battery can pose a risk of electric shock and burns due to high short-circuit current.
• A malfunctioning battery can reach temperatures that exceed the safe contact level.

Symbols

Specifications

Table 1-1 Battery Pack Specifications

Unit Dimension

| L442mmW530mmH140mm(3.2U) L17.40inW20.87inH5.51in(3.2U)
Unit Weight| 44KG / 97lbs
Recommended Charge/ Discharge Current [1]|

75A

Max Charge/ Discharge Current [2]|

100A

Peak Charge/ Discharge Current| 101A~120A (3min);

121A~180A (15sec)

Round-Trip Efficiency| ≥95%
Communication Protocol| RS485, CAN, WiFi (W/ Optional Device)
Cycle Life [3]| ≥6000cycles
Calendar Life| ≥10years

Operating Temperature

| Charge: 0°C~45°C(32℉~113℉) Discharge: -10°C~50°C(14℉~122℉)
Certificates| UN38.3, CE, UL1973, UL9540A, UL9540, IEC62619, CEC, SGIP

Within 1month: -20°C~50°C(-4℉~122℉)

Storage Temperature

| 1-3months: -10°C~40°C(14℉~104℉)

3-12months: > 0°C~30°C(32°F~86°F)

Heating System [4]

| Temperature Rise 10°C(18℉)/Hour, Operation Temperature -18°C~10°C(-0.4℉~50℉)

1. The recommended and Max continuous charge and discharge current is for a battery cell temperature within 10°C~40°C(50℉~104℉)to consider. It will result in a derating on current if out of the temperature range.
2. Test conditions 0.2C Charging/Discharging, @25°C(77℉), 80% DOD.
3. Optional Device. Specified on Battery package whether integrated. Working with some inverters, heating system may consume enengy from battery when there’s voltage difference among system modules, between 0°C/32°F to 5°C/41°F. Follow 5.3.3 of this manual for multiple batteries power cable connection to minimize influence of the circular current, thus decrease battery energy loss.

Product standard configuration

V5° Version

V5°α Version

BMS Functions

Administrator Monitoring

Short Circuit Protection| Log Record
Power Cable Reverse Protection|

Interface and protection functions

Battery front panel schematic

Components

Operating Environment

• Battery operating environment requirements:
  • Operating Temperature: -10℃~50℃(14℉~122℉)
  • Relative Humidity: 20%-80%, no condensation
  • Altitude: ＜4000m
• Site environment requirements: Away from heat source, avoid direct sunlight, no corrosive gases, no explosive gases, no insulating gases, no insulating conductive dust.
• Install in cabinet which shall not be opened without dedicated tools
• Install in a restricted access area.

Packaging, transportation, storage requirements

Transportation

• Always check all applicable local, national, and international regulations before transporting Li-ion Batteries.
• During transportation, protect the battery from severe vibration, shock or squeezing, and from exposure to sunlight and rain.
• During the loading and unloading process, the battery should be handled gently to prevent it from falling, rolling and being subjected to heavy pressure.

Storage

• Relative humidity: 20%-80%, no condensation
• Altitude: <4000m
• Store the battery in a cool, dry place, away from heat sources and no direct sunlight. Keep away from conductive substances such as conductive dust
• For long-term storage (>6 months), charge the LFP battery to more than 90% of its rated capacity. The battery needs to be charged to more than 90% of its rated capacity every 6 months.
• Keep the SOC of the battery at 40%-60% during storage. The Self-discharge of the LFP battery pack is 1-2% per month. If there is no power left when checking the LFP battery, do not charge or use it without permission, contact your installer for the next step.
• Follow the storage instructions in this section and refer to Table 1-1 Battery Pack Specifications for storage temperature to optimize the battery lifespan during storage. Any failure or damage to the battery caused by failure of following these instructions is not covered by the warranty.

Disposal
Disposal of the batteries should be in accordance with local laws and regulations and should be carried out by an expert with specialized knowledge and experience in electrical and environmental safety, at designated waste disposal facilities using safe and appropriate method.

Installation and configuration

Installation preparation

Safety Requirements

• Only those who have received training in the power system and possess a comprehensive understand-ing of the same are allowed to install the equipment. It is imperative to follow the safety regulations defined by local authorities and adhere to the safety requirements listed below during the installation process.
• Before installing or removing the battery, make sure that the system is disconnected from any power source and that the battery system is turned off. Distribution cabling needs to be handled carefully with essential protective measures to avoid any safety hazards during the maintenance and operation.

Checking the operation environment
The operation environment must comply with the requirements outlined in Chapter 3, “Operation Environment.” If not, necessary adjustments must be made and subsequently reevaluated.

Tools
The tools that may be used are shown in Table 5-1.
Table 5-1 Tools

Tools

Screwdriver (Slotted, Phillips)| Multimeter
Wrench| Clip-on ammeter
Diagonal pliers| Insulating tape
Thermometer| Pliers
Anti-static wrist ring| Clip Pliers
Tapes| Strippers

Technical preparation

• Electrical interface settings:
  • If the battery is directly connected to the energy storage inverter or DC charger, please verify:
  • if the operating voltage, current, and power of the equipment align with the battery parameters listed in “Table 1-1 Battery Pack Specifications”.
• Safety inspection:
  Fire-fighting equipment such as portable dry powder fire extinguishers in proximity to the battery is mandatory. Dangerous substances such as flammable or explosive materials must not be stored near the battery.

Unpacking

• When the battery arrives at the installation site, it must be unloaded and stored properly and prevented from the direct sunshine and rain. Before installation, check if there is any component missing according to 1.1 product standard configuration and check whether the box appearance is intact;
• Carefully handling the unpacking to preserve the insulation coating on the casing’s surface.
• Please contact PYTES if there is any damage or missing of products and / or components.

Installation

Install the battery
The V series can be installed either vertically or horizontally. The instructions in this chapter are only for horizontal installation, while vertical installation follows a similar process. All equipment must be placed steadily after installation.

Connect Ground cable

• Loosen the screw on the grounding position of the front panel of the battery and attach the lug of the ground cable over the screw. Use a screwdriver to tighten the screw and connect the other end of the ground cable to a reliable grounding point.
• External Bi-polar over current protection devices and Bi-polar external isolator shall be equipped. The diameter of the ground cable must be ≥ 6mm2 / 12kcmilExternal Bi-polar over current protection devices and Bi-polar external isolator shall be equipped.
• The minimum diameter must be >=6mm2.
  Note: The grounding resistance should be less than 0.1Ω.

Connecting the power cable

• Before connecting the power cable, connect and disconnect the cable to identify the positive and negative terminals, then make a mark respectively. After the cable is connected, measure whether there is short-circuit or reverse connection.

• Select the correct cable based on your loads by referencing to the table below：
  AWG| Area| Standard Current| Max. Current
  ---|---|---|---
  (kcmil)| (mm²)| （ A ）| （ A ）
  4/0| 211.48| 107.22| 423.2| 482.6
  3/0| 167.67| 85.01| 335.5| 382.6
  2/0| 133| 67.43| 266.2| 303.6
  1/0| 105.5| 53.49| 211.1| 240.7
  1| 83.65| 42.41| 167.4| 190.9
  2| 66.31| 33.62| 132.7| 161.3
  3| 52.6| 26.67| 105.2| 120.0
  4| 41.7| 21.15| 83.5| 95.2

• Please select suitable power cable according to maximum current that may pass through the circuit. If you need advice, please contact your installer for help.

• Connecting the power cables:

  1. Power cable connection instructions of Single-Rack:

  • Single battery:
    Connect the positive and negative terminals of the battery to the battery port of the energy storage inverter with power cables.

  • Multiple batteries (Max number 16):

  • The connection of multiple batteries is only permitted in parallel. Firstly, connect the positive and negative terminals of the batteries in parallel with the supplied flexible busbar (for up to three batteries, no additional accessories are required). Next connect the positive and negative terminals of the battery port of energy storage inverter to one of the batteries with power cables. But due to limitations in battery communication and power cables, a maximum of 16 batteries can be connected in parallel, and a busbar or junction box should be used for convergence.

  • Regardless of the number of batteries in parallel, the standard charging and discharging current for a single battery remains the same, please refer to “Table 1-1”. The capacity can be increased by connecting the batteries in parallel, but due to the limitations of BMS and power cable, a maximum of 16 batteries can be connected in parallel and a busbar or junction box should be used for confluence.
    Warning: Connecting batteries in series is forbidden, as it can create a high voltage that poses a hazardous shock risk.

  2. Power cable connection instructions of Multi-Rack:

• Connect the overall power cables of each rack to the convergence bus bar (or junction box) in parallel, then connect them to the energy storage inverter.

• It is recommended to add a circuit breaker for protection between battery system and inverter.

• Rated voltage U≥60V DC; Rated current to consider maximum DC current on inverter side.

Connecting communication cables

1. Communication cable connection instructions of Single-Rack:

   • Single battery:
     Select the corresponding port based on the communication protocol between the battery and energy storage inverter (RS485/CAN), and then insert the communication cable into the port.

   • Multiple batteries (Max number 16):
     The communication between the master and the slaves is carried out in a cascade mode, wherein one battery acts as the master while the others are slaves. Please refer to the picture below for the cascade connection. Users need to insert the communication cables into the relevant link ports between the batteries and keep in mind that:

   1. Keep the master Port 0 free;
   2. Keep the end slave Port 1 free;

2. Communication cable connection instructions of Multi-Rack:
   Connect the master battery of each rack to a hub with a standard communication cable. A Hub is required for to build up the communication between inverter and battery (more than 16 batteries or more than one rack)

WIFI Connection
The battery provides a WiFi port for data collection and upload to the monitoring cloud platform, which supports remote viewing of battery data and enables remote firmware upgrades. This product can be purchased separately from PYTES authorized resellers/distributors/installers.

1. Diagram****
2. Connecting steps:
   • Step 1: Insert the WiFi stick into the LoT Port on the battery panel.
   • Step 2: Create an account on the cloud platform and bind the WiFi stick.
   • Step 3: Pair the WiFi stick with a wireless network (see WiFi stick user manual for details).

Procedure of starting/Shut down the whole system

Make sure that all batteries have been powered on prior to running the inverter. This is to avoid battery shock by the in-rush current of the large capacitors of the inverter.

Power on Procedure

• Step 1: Turn on all power buttons.
• Step 2: Press only the master battery SW button for one second.
  Please ensure that all batteries have been activated before turning on the inverter. This will help prevent battery shock caused by the inrush current of the large capacitors in the inverter.

Shut down Procedure

• Step 1: Press and hold the SW button of the master battery for three seconds.
• Step 2: Turn off all power buttons.
  Please wait for all battery lights to go out before turning off the power buttons.
  Note: Batteries must be placed in a locked cabinet or room with a 25mm/1inch horizontal gap for ventilation between them. The battery cabinet needs to support the total weight of the batteries and necessary accessories.

Communication

The battery features RS-232C, RS-485, and CAN communication ports. The battery status can be obtained.

• CAN

  • The CAN communication terminal (RJ45 port) follows CAN protocol, to output batteries information. RS485
  • The RS485 communication terminal (RJ45 port) follows RS485 protocol, to output batteries information. RS232
  • The RS232 communication terminal (RJ45 port) follows RS232 protocol, to upgrade the software and to communicate with your PC.

• Link Port 0,1
  The Port 0 and Port 1 communication terminals (RJ45 ports) follow the CAN/RS485 protocol for cascade communication between multiple parallel batteries.

• LoT Port
  4 Pin Circular Connector for connecting with WiFi sticks

RS232 port
Default baud rate of RS-232C ports: 115200bps.

RS485 port and CAN port.
Default baud rate of RS-485 port: 9600bps
Default baud rate of CAN port: 500K

Troubleshooting

Please refer to the troubleshooting methods mentioned below. Please read the “Table 7-1 LED indica-tion” of this manual before troubleshooting to avoid false operations.
For example, the blinking or constant red light of the ALM alarm on the front panel does not necessarily indicate a faulty battery. In most cases, the “alarm” indication signifies normal operation and requires no troubleshooting. Furthermore, if the battery indicates “protection,” it will resume normal operation automatically once the “protection” status is released.

Unable to start

Press the POWER button to the “ON” state and press the SW button for 1 second, but the LED indicator doesn’t respond or all the LEDs are off after this 1s duration| 1.  Confirm that the POWER button remains in the “ON” state;

2.  Charge the battery correctly and observe if the battery can be charged properly.

| 1.  If the battery enters into charging mode, it should return to its normal state after completing the charging process.

2.  If not, please contact the local reseller or Pytes.

Unable to charge

power cable to make sure that it is correctly plugged in and that the charging circuit is functioning properly;

3.  Check the battery indicator LED to determine if the battery is under “Protection” state. If so, unplug the battery power cable, find the cause of the protection, and correct the issue before

restarting the battery.

| does not charge properly after following the steps, please contact the local

reseller or Pytes.

| 4. Ensure that the charging voltage meets the battery’s charging|
| requirements. If not, adjust the power supply voltage to the|
| proper range.|

Unable to discharge

discharge
The battery| connected.| properly after
cannot be| 3. Unplug the battery power cable and measure the battery power| following the above
discharged| output voltage. If the battery voltage is too low, charge it immedi-| steps, please
properly.| ately.| contact the local
| 4．Check the battery indicator LED to see if the battery is under| reseller or Pytes.
| “Protection” state. If so, unplug the battery power cables, find the|
| cause of the protection, resolve the issue, and thereafter restart|
| the battery.|

ALM indicator(alarm) constantly on
When the ALM indicator is constantly red and the other indicators are off, the battery is in the “Protection” state. Once the condition that triggered protection is released, the battery will automatically return to normal operation. However, there are a few issues requiring immediate measures.

The ALM indicator remains in a constant state of red, while all other indicators remain inactive.| they are properly connected.

2.Check whether the charging voltage, charging/discharging current, battery/cell voltage and temperature meet the relevant protection conditions, and release the “protection” state to ensure that the

| state cannot be released, or if the ALM indicator is constantly on when the battery is properly charged after it is restarted, please

contact your local reseller or

| voltage, current and temperature are within| Pytes.
| the normal working range.|

Warranty Card

ABOUT COMPANY

• Shanghai PYTES Energy Co., LTD
• Add：No.3492 Jinqian Road, Fengxian District, Shanghai, China
• Tel: +86 21 5747 5852
• Email: ess_support@pytesgroup.com

References

• Pytes

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