1. Introduction
This manual provides essential information for the safe and efficient operation of your Tewaycell ALL IN ONE 51.2V 300Ah Energy Storage System (ESS) with a built-in 5kW Inverter. This integrated system is designed for home solar energy storage, offering a reliable and sustainable power solution. Please read this manual thoroughly before installation and operation to ensure proper usage and longevity of the product.
2. Key Features
- Long Cycle Life: Designed for over 6000 cycles at 80% Depth of Discharge (DOD).
- Integrated Design: All-in-one unit with built-in 5kW inverter and 16S 100A Battery Management System (BMS) for easy installation and use.
- High-Quality Cells: Utilizes Grade A LiFePO4 battery cells (EV280K Cells) for superior performance and safety.
- Advanced Charging: Features a built-in MPPT (Maximum Power Point Tracking) solar charge controller.
- Scalability: Supports parallel connection for up to 6 units, allowing for 3-phase output and a maximum of 30kW output.
- Safety Features: Includes a built-in temperature control fire extinguisher and a 5A active balancer for enhanced safety and cell longevity.
- Multiple Working Modes: Adaptable for various power supply scenarios, including main power, backup power, and dealing with sudden power failures.
- Space-Saving Design: Patented vertical structure minimizes footprint.
3. Specifications
The following table details the technical specifications for the Tewaycell ALL IN ONE 51.2V 300Ah ESS (Model TW-AO-MB51300-5KW-PV550V):
| Category | Parameter | Value (for 51.2V 300Ah model) |
|---|---|---|
| Battery Model | TW-AO-MB51300-5KW(16S) | 51.2V 300Ah |
| Battery Energy | Energy Capacity | 15.36 kWh |
| Battery Capacity | Rated Capacity | 300 Ah |
| Weight | Unit Weight | 144 kg |
| Dimensions (L x W x H) | Product Size | 900*520*300 mm |
| Battery Type | Cell Chemistry | Lithium Iron Phosphate (LiFePO4) |
| System Voltage | Nominal Voltage | 51.2 V |
| Battery Working Voltage | Operating Voltage Range | 44.8 V ~ 57.6 V |
| Max Charging Current | Maximum Charge Rate | 100 A |
| Max Discharging Current | Maximum Discharge Rate | 100 A |
| DOD Designed Life Span | Cycle Life | 6000 Cycles @ 80% DOD (0.2C/25°C) |
| Inverter Model | Built-in Inverter | HSI 5500P |
| PV Charge Type | Controller Type | MPPT |
| Max Input Power (PV) | Solar Input Power | 6000 W |
| PV Charging Current | Solar Charging Current | 120 A |
| PV Operating Voltage Range | Solar Operating Voltage | 120-500 V |
| Max PV Voltage | Maximum Solar Voltage | 550 V |
| AC Charging Current Range | Grid Charging Current | 0-60 A |
| Charging Grid Error | Grid Error Tolerance | 63 ADC |
| Rated Input Voltage (AC) | AC Input Voltage | 230 Vac |
| Circuit Breaker Specification | AC Input Breaker | 40 A |
| Rated Output Power (AC) | AC Output Power | 5500 W |
| Maximum Output Current (AC) | AC Output Current | 24 A |
| Frequency (AC) | AC Frequency | 50 Hz / 60 Hz |
| Rated Voltage (AC) | AC Output Voltage | 230 Vac |
| Rated Output Power (Inverter) | Inverter Output Power | 5500 VA |
| Maximum Peak Power (Inverter) | Inverter Peak Power | 11000 VA |
| Power Factor | Power Factor | 1 |
| Rated Output Voltage (Vac) | Inverter Output Voltage | 230 Vac |
| Frequency (Inverter) | Inverter Frequency | 50 Hz / 60 Hz |
| Auto Switch Period | Transfer Time | < 15 ms |
| Wave | Output Waveform | Sine Wave |
| Communication Port | Interface Types | CAN, RS232, RS485 |
| Storage Time/Temperature | Recommended Storage Conditions | 6 months @ 25°C, 3 months @ 35°C, 1 month @ 45°C |
| Charging Temperature Range | Operating Charge Temperature | 0-50°C |
| Discharging Temperature Range | Operating Discharge Temperature | -10-50°C |
| Operation Humidity | Relative Humidity | 5% - 85% |
| Noise Operation Altitude | Altitude Limit | < 2000 m |
| Cooling Mode | Cooling Method | Force-Air Cooling |
| Noise | Noise Level | < 60 dB(A) |
| Ingress Protection Rating | IP Rating | IP20 |
| Recommended Operation Environment | Environment | Indoor |
| Installation Method | Mounting | Vertical |
4. Setup & Installation
The Tewaycell ALL IN ONE ESS is designed for straightforward installation due to its integrated components. However, professional installation is recommended to ensure safety and optimal performance.
4.1. Physical Placement
- Place the unit indoors in a well-ventilated area, away from direct sunlight, heat sources, and flammable materials.
- Ensure the installation surface is stable and can support the unit's weight (144 kg). The unit is equipped with rollers for easier positioning.
- Maintain adequate clearance around the unit for proper airflow and access for maintenance.
4.2. Connection Ports and Switches
The top panel of the unit provides various connection ports and switches:
- PV+ / PV- Ports: Connect your solar panel array to these DC input terminals.
- AC Input Port: Connect to your main grid power or a generator for charging the battery and/or powering loads.
- AC Output Port: Connect to your home's electrical distribution panel to power appliances.
- Battery Port: For internal battery connections (pre-wired).
- Switches (PV IN, AC IN, AC OUT, BAT): These circuit breakers control the respective power flows. Ensure they are in the OFF position before making any connections.
4.3. Communication Interfaces
The rear panel features various communication interfaces for monitoring and control:
- Battery Communication Interface: Includes RST, ADS, DCT, RS485 CAN, RS232, RS485/RS485 ports.
- Inverter Communication Interface: Includes RS485-2, USB, RS485-1, and Parallel Connection ports.
- Parallel Connection: For connecting multiple units (up to 6) for increased capacity or 3-phase output.
4.4. Wiring Diagram and Usage Scenario
The system integrates solar power, grid power, and battery storage to provide continuous electricity to your home. Refer to the diagram below for a typical usage scenario:
The system can receive DC power from solar panels and AC power from the grid or a generator. It stores energy in the integrated LiFePO4 battery and provides AC output to power various household appliances.
4.5. Internal Structure
The unit houses Grade A LiFePO4 battery cells, a built-in inverter, and a BMS, all connected via laser welding for robust internal connections.
5. Operating Instructions
5.1. Initial Power-Up
- Ensure all external connections (PV, AC Input, AC Output) are securely made and the respective switches are in the OFF position.
- Turn on the main battery switch (BAT) on the top panel.
- Turn on the AC Input (AC IN) and AC Output (AC OUT) switches.
- Turn on the PV Input (PV IN) switch if solar panels are connected.
- The system will initiate, and the LED displays will light up.
5.2. External Displays
The unit features two LED displays for monitoring battery and inverter status:
- Battery Power Display (Left): Shows real-time battery parameters such as Pack Voltage (PackV), Current (In), Temperature, and Cell Voltage. Use MENU, ENTER, DOWN, ESC buttons to navigate and adjust settings.
- Inverter Power Display (Right): Displays inverter status including Input Battery Voltage (INPUTBATT), Output Voltage (OUTPUT), Load percentage (LOAD), and operational mode (AC/INV, CHARGE, FAULT indicators). Use SET, UP, DOWN, ENT buttons to configure inverter settings.
Video 5.1: Product overview demonstrating external displays, ports, and internal components.
5.3. Operating Modes
The inverter supports various operating modes, which can be configured via the Inverter Power Display. These modes typically include:
- Grid-Tie with Battery Backup: Prioritizes solar power, uses grid for supplemental power or charging, and provides battery backup during outages.
- Off-Grid Mode: Operates independently from the grid, relying solely on solar and battery power.
- Battery Priority Mode: Discharges battery first, then uses grid or solar.
Refer to the detailed inverter manual (if provided separately) for specific mode configurations and advanced settings.
6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your Tewaycell ESS.
- Cleaning: Keep the exterior of the unit clean and free from dust. Use a dry, soft cloth. Do not use liquid cleaners directly on the unit.
- Ventilation: Ensure that the ventilation openings are not blocked to allow for proper airflow and cooling. The system uses force-air cooling.
- Connection Checks: Periodically inspect all electrical connections (PV, AC Input, AC Output, Battery) for tightness and signs of corrosion. Ensure all switches are functioning correctly.
- Firmware Updates: Check the manufacturer's website or contact support for any available firmware updates for the inverter or BMS.
- Battery Health: The built-in BMS and active balancer help maintain battery health. Monitor battery parameters on the display for any unusual readings.
- Temperature Control: Ensure the operating environment stays within the recommended temperature ranges (Charging: 0-50°C, Discharging: -10-50°C, Storage: 6 months @ 25°C).
7. Troubleshooting
This section addresses common issues you might encounter with your ESS.
- No Power Output:
- Check if the AC OUT switch is in the ON position.
- Verify that the battery has sufficient charge (check PackV on the display).
- Ensure the inverter is not showing a 'FAULT' indicator.
- Check all connections for looseness.
- Battery Not Charging:
- If charging from solar, ensure PV IN switch is ON and solar panels are receiving sunlight. Check PV voltage on the inverter display.
- If charging from AC, ensure AC IN switch is ON and grid power is available.
- Check for any 'CHARGE' or 'FAULT' indicators on the inverter display.
- Unusual Noises or Smells: Immediately turn off all switches (BAT, PV IN, AC IN, AC OUT) and disconnect the system from all power sources. Contact technical support.
- Display Not Working: Check if the unit is powered on. If the unit is on but the display is blank, contact support.
7.1. Frequently Asked Questions (FAQ)
- Q: Can I assemble the battery pack myself?
A: No, this is an ALL IN ONE integrated system with a built-in inverter and BMS. It is not designed for user assembly of the internal battery pack. Attempting to do so will void the warranty and may be dangerous. - Q: What should I do if the inverter shows a 'FAULT' indicator?
A: A 'FAULT' indicator suggests an issue with the inverter. Note down any error codes or messages displayed and refer to the inverter's specific manual or contact technical support for assistance.
8. User Tips
- Professional Installation: While designed for ease of use, due to the high power and voltage involved, it is highly recommended to have the system installed by a qualified electrician or solar professional.
- Monitor Performance: Regularly check the external displays to understand your system's performance, battery state of charge, and power flow. This helps in early detection of potential issues.
- Parallel Connection Planning: If you plan to expand your system with parallel units, ensure proper planning and professional installation to achieve the desired 3-phase output and maximum 30kW capacity.
- Environmental Conditions: Maintain the recommended indoor environment to optimize the system's lifespan and efficiency. Avoid extreme temperatures and high humidity.
9. Warranty & Support
9.1. Warranty Information
The Tewaycell ALL IN ONE ESS comes with a 5 to 10-year warranty, providing peace of mind for your investment. Please refer to your purchase documentation for specific warranty terms and conditions.
9.2. Technical Support
For technical assistance, troubleshooting, or warranty claims, please contact Tewaycell customer support:
- WhatsApp: +86 15116408818
- E-mail: 654424609@qq.com
When contacting support, please have your product model number and purchase date available.
