1. Introduction
This manual provides essential information for the safe and efficient use of your Tewaycell 48V 200Ah LiFePO4 Battery Pack. This 10KWh Power Wall battery is designed for household energy storage, featuring a built-in Battery Management System (BMS) and communication capabilities (CAN, RS485, RS232). Please read this manual thoroughly before installation and operation to ensure optimal performance and safety.
Image: Tewaycell 48V 200Ah LiFePO4 Battery Pack highlighting 10KWh capacity, 6000+ cycles, CAN/RS232 communication, built-in BMS, mobile pack design, 206AH cells, brand new Grade A cells, 10-year warranty, and tax-free status.
2. Important Safety Warnings
Failure to follow these safety instructions may result in fire, electric shock, serious injury, or property damage.
- Do not immerse the battery in water or allow it to get wet.
- Do not use or store the battery in extremely hot environments.
- Do not use the battery in strong electrostatic or magnetic fields, as this may compromise battery safety.
- Do not reverse the positive (+) and negative (-) terminals. Ensure correct polarity during connection to prevent damage.
- Charge the battery only with a specified charger and according to the charging requirements outlined in this manual.
- Ensure the connection between the inverter and MPPT (Maximum Power Point Tracking) is correct. If you encounter any technical problems, contact Tewaycell support immediately.
- California Proposition 65 Warning: This product contains Lithium carbonate, a chemical known to the State of California to cause developmental toxicity. For more information, go to www.P65Warnings.ca.gov.
3. Product Overview
The Tewaycell 48V 200Ah LiFePO4 Battery Pack is a robust energy storage solution. Key features include:
- High Cycle Life: >6000+ cycles.
- Integrated BMS: Provides comprehensive protection and management.
- Communication Ports: RS485*3, CAN, RS232 for seamless integration with various systems.
- Durable Construction: Stainless steel housing.
3.1 Components
Image: Front view highlighting the integrated handle and power display.
Image: Front view highlighting high current electrodes and the control panel.
Image: Detailed control panel layout. Features include Positive Terminal, Negative Terminal, Power Switch, Handles, ON/OFF Indicator, Reset button, Alarm Indicator, SOC (State of Charge) Indicator, DIP Switches, Communication Ports (RS485, CAN, RS232), Dry Contact, Running Indicator, and an LCD Display.
3.2 Built-in Battery Management System (BMS)
The integrated BMS provides comprehensive protection for the battery pack, ensuring safety and longevity.
Image: BMS features include Over Charge Protection, Overdischarge Protection, Power Display, Temperature Monitoring (NTC), Automatic Battery Balancing, and Current Protection.
4. Specifications
| Attribute | Value |
|---|---|
| Product Model | TW-48V-200AH |
| Nominal Voltage | 48V |
| Rated Voltage | 48V |
| Charging Cut-off Voltage | 58.4V |
| Nominal Capacity | 200AH |
| Energy | 10240Wh (10KWh) |
| Cycle Life | >6000+ Cycles |
| BMS | 15S 200A |
| Terminal Size | M8 |
| Weight | 88KG |
| Dimensions (L*W*H) | 665*400*235mm |
| Communication Ports | RS485*3, CAN, RS232 |
| Type | LiFePO4 |
| Application | Household energy storage |
| Certification | CE |
| High-concerned chemical | Lithium Carbonate |
Image: Diagram showing product model, nominal voltage, charging cut-off voltage, nominal capacity, energy, cycle life, BMS, terminal size, weight, dimensions (665*400*235mm), and communication ports.
5. Setup and Installation
5.1 Packing List
Before beginning installation, verify that all components are present:
- Battery Pack (TW-48V-200AH)
- Fit screws
- Parallel Power Cable
- Mechanical support
Image: Visual representation of the included packing list items.
5.2 Connection Diagram
The battery pack can be integrated into various energy systems. A typical setup involves connecting to solar panels, an inverter/MPPT, a generator, or utility power, to supply household appliances.
Image: Diagram illustrating how the energy storage battery connects to solar panels, an inverter/MPPT, a generator, utility grid, and powers various household appliances.
5.3 Parallel Connections
For increased capacity, multiple Tewaycell 48V 200Ah battery packs can be connected in parallel. The system supports up to 15 parallel connections.
Image: Illustration of multiple battery units connected in parallel, indicating support for up to 15 units.
6. Operation
6.1 Powering On/Off
Use the Power Switch on the control panel to turn the battery pack on or off. The LCD Display will show operational status and battery information.
6.2 Monitoring and Configuration
The battery pack can be monitored and configured via PC software using the communication ports (RS485, CAN, RS232).
Image: Screenshot of the PC monitoring interface, showing options for Realtime Monitoring, Multi Monitoring, Information, Parameter Setting, System Configuration, and Data Export.
Image: Screenshot of the PC software's parameter settings, allowing adjustment of various voltage, current, temperature, and delay settings for cell and pack protection, as well as balance threshold and sleep voltage.
6.3 Battery Performance Curves
Understanding the battery's discharge and charge characteristics is crucial for optimal performance.
Image: Battery test curve analysis, including different rate discharge curves at 25°C, different temperature discharge curves at 0.5C and 25°C, and open circuit voltage versus SOC (State of Charge) percentage. Also lists battery test process steps.
Image: Graphs showing charge characteristics at 0.2C & 0.5C at 25°C, and charge characteristics at 0.2C at 25°C, illustrating voltage and charge current over time/capacity.
7. Maintenance
- Keep the battery clean and dry.
- Avoid exposing the battery to extreme temperatures (both high and low) for prolonged periods.
- Ensure proper ventilation around the battery pack.
- Regularly check all connections for tightness and corrosion.
- Charge the battery regularly, even if not in use, to maintain its health. Avoid deep discharge for extended periods.
8. Troubleshooting
If you encounter issues with your battery pack, consider the following:
- Battery Not Powering On: Check the power switch. Ensure all connections are secure and correctly polarized. Verify the charging source is active if attempting to charge.
- Abnormal Behavior: If the battery is exposed to water, extreme heat, or strong electromagnetic fields, immediately disconnect it and contact support.
- Communication Issues: Ensure communication cables are correctly connected to the appropriate ports (RS485, CAN, RS232) and that the PC software settings are correct.
- Charging Problems: Confirm you are using a compatible charger and that it meets the specified charging requirements.
For any persistent technical problems or issues not covered here, please contact Tewaycell customer support for assistance.
9. User Tips
- Inverter Compatibility: When selecting an inverter, ensure it is compatible with 48V LiFePO4 battery systems and supports the communication protocols (CAN, RS485, RS232) for optimal integration and monitoring. Many users inquire about compatibility with brands like RoHs compliant inverters or specific models like the ANERN 6.2 kW inverter. Always verify specifications with your inverter manufacturer.
- Certification Verification: For specific project requirements, confirm that the battery's certifications (CE, etc.) meet local standards such as UL 1973, UL9540, RCM, TUV (IEC 62619), or NRTL.
- Professional Installation: Due to the high power and complexity of energy storage systems, professional installation is highly recommended to ensure safety and compliance.
10. Compliance and Certification
The Tewaycell 48V 200Ah LiFePO4 Battery Pack holds the following certifications:
- CE Certification
- Additional certifications as shown in the image below, including SGS and ISO standards.
Image: Various certification documents for the battery pack, including CE, SGS, and ISO.
11. Warranty and Support
The Tewaycell 48V 200Ah LiFePO4 Battery Pack comes with a 10-year warranty, reflecting our commitment to quality and durability.
For technical assistance, troubleshooting, or warranty claims, please contact Tewaycell customer support. Our team is available to provide support and ensure your satisfaction.
