30kWh All-in-One LiFePO4 Energy Storage System
The TezePower 51.2V 587Ah 30kWh All-in-One LiFePO4 ESS combines a high-capacity battery system with a built-in 12kW AC380V three-phase off-grid inverter in one integrated solution.
With approximately 30kWh of energy storage capacity, this system is designed for home solar storage, backup power and off-grid energy applications.
By integrating the battery and inverter into one system, the All-in-One design helps simplify installation, reduce separate components and save installation space.
A variety of charging methods, which can be charged with photovoltaic or mains power, or both at the same time.
Note: Grid charging is supported, but the system does not feed power back to the utility grid.
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Built-in 12kW AC380V Three-Phase Off-Grid Inverter
The system features a built-in 12kW AC380V three-phase off-grid inverter designed for solar and off-grid power applications.
The inverter works with the battery and solar system to supply AC power to connected loads and manage available energy.
The AC380V three-phase configuration makes the system suitable for homes and applications requiring three-phase AC power.
Important:
This inverter is designed for off-grid operation. It does not support grid-tied operation or feeding electricity back to the utility grid.
300A Smart BMS with WiFi Battery Monitoring
The integrated 300A Smart BMS provides intelligent battery management and protection during charging and discharging.
The BMS monitors battery operating conditions and provides protection functions such as:
- Overcharge protection
- Over-discharge protection
- Overcurrent protection
- Short-circuit protection
- Temperature protection
The BMS also includes WiFi communication for battery monitoring.
Users can connect to the compatible BMS App to check battery-related data and operating status.
BMS WiFi is specifically for battery monitoring.
It is separate from the optional WiFi module used for inverter monitoring.
Active Cell Balancing
The integrated active cell balancing function helps maintain better voltage consistency between individual LiFePO4 cells.
Active balancing helps improve cell consistency and supports stable battery operation over the long term.
Combined with the 300A Smart BMS, it provides intelligent battery management for the high-capacity energy storage system.
Built-in Temperature-Sensitive Fire Extinguisher
For additional safety, the system features a built-in temperature-sensitive fire extinguisher.
This integrated fire protection system provides an additional layer of protection inside the battery enclosure.
Combined with LiFePO4 battery technology and Smart BMS protection, it contributes to a comprehensive safety design for home and off-grid energy storage.
Optional WiFi Module for Inverter Monitoring
An optional WiFi module is available for the built-in off-grid inverter.
This module is separate from the BMS WiFi function and is designed specifically for inverter communication and monitoring.
After installing the optional inverter WiFi module, users can monitor inverter operating data through the compatible inverter manufacturer's App.
Battery and inverter monitoring are separate:
- BMS WiFi + BMS App: Monitors battery and BMS data.
- Optional Inverter WiFi Module: Monitors inverter operating data.
- Inverter WiFi Module: Optional.
Plug & Play All-in-One Design
The battery and inverter are integrated into one complete energy storage system, providing a convenient Plug & Play solution.
The integrated design can simplify installation and reduce the number of separate components required.
The system is designed to provide a more convenient solution for homeowners looking for an integrated battery and off-grid inverter system.
30kWh High-Capacity Solar Energy Storage
With approximately 30kWh of energy storage capacity, the system can store solar energy for use when solar production is low or unavailable.
It is suitable for applications including:
- Home solar energy storage
- Off-grid power systems
- Backup power
- Solar self-consumption
- Three-phase off-grid applications
- Energy management
- Time-of-use energy optimization
Time-of-Use Charging & Discharging
The system supports time-of-use charging and discharging, allowing users to configure charging and discharging periods according to their energy management strategy.
This can help users make better use of available solar energy and manage battery charging and discharging according to their preferred schedule.
Peak Shaving & Valley Filling – Time‑of‑use scheduling enables users to charge during off‑peak low‑tariff hours and discharge during peak high‑tariff hours, maximizing electricity cost savings.
Three-Phase AC380V Power System
The built-in inverter provides AC380V three-phase power, making the system suitable for applications requiring three-phase electrical output.
The combination of a 30kWh LiFePO4 battery and 12kW three-phase off-grid inverter provides substantial energy storage and high power output in one integrated system.
Mobile Four-Wheel Design
The All-in-One system features a four-wheel mobile design, making it easier to move and position during installation and maintenance.
The mobile design provides additional flexibility when selecting the installation location.
Multiple Communication Interfaces
The system supports RS232, RS485 and CAN communication interfaces, providing flexible communication options for compatible equipment and energy management systems.
Grade A+ LiFePO4 Battery Cells
The system uses Grade A+ LiFePO4 battery cells for reliable long-term energy storage.
LiFePO4 battery technology is widely used in residential solar and energy storage applications because of its stable chemistry, safety characteristics and long service life.
| MODEL | AO-MB51587-AC380V-12KW-EU |
| BATTERY TECHNICAL SPECIFICATION | |
| Battery model | MB51587-300A-HWB |
| Number of batteries | 1 |
| Battery Energy | 30kWh |
| Battery Capacity | 587Ah |
| Battery Type | LiFePO4 |
| Battery Rated Voltage | 51.2V |
| Battery Working Voltage Range | 44.8~57.6V |
| Maximum Charging Current | 300A |
| Maximum Discharging Current | 300A |
| Designed Life-span | >10000 Cycles @0.2C/25℃ |
| INVERTER TECHNICAL SPECIFICATION | |
| Inverter model | SPI-12K-H3P |
| PV CHARGE | |
| Solar Charge Type | MPPT×2 |
| Maximum Input Power | 9000W / 9000W |
| PV Charging Current Range | 22A + 22A |
| PV Operating Voltage Range | 800Vdc / 800Vdc |
| MPPT Voltage Range | 200–650Vdc |
| AC CHARGE | |
| Frequency Range | 50/60Hz |
| Input Voltage Range | Phase voltage 170~280V, Line voltage 305~485V |
| Bypass Overload Current | 35A |
| AC OUTPUT | |
| Rated Output Power | 12000W |
| Max. Peak Power | 24000W |
| Rated Output Voltage | 230/400Vac (Three-Phase) |
| Load Capacity of Motors | 6HP |
| Rated AC Frequency | 50/60Hz |
| Waveform | Pure Sine Wave |
| Switch Time | 10ms (typical) |
| BATTERY INVERTER OUTPUT | |
| Rated Output Power | 12000W |
| Maximum Peak Power | 24000W |
| Power Factor | 1 |
| Rated Output Voltage (Vac) | 230/400Vac (Three-Phase) |
| Frequency | 50Hz±0.3Hz / 60Hz±0.3Hz |
| Auto Switch Period | <15ms |
| THD | <3% |
| GENERAL DATA | |
| Protection Degree | IP20, Indoor Only |
| Operating Temperature Range | -15~55℃, >45℃ derated |
| Noise | <60dB |
| Cooling Method | Internal Fan |
| COMMUNICATION | |
| Embedded Interfaces | RS485 / CAN / USB / Dry contact |
| External Modules (Optional) | Wi-Fi / GPRS |







Precautions
•No matter what the charging model is, once the temperature of the cell is above the absolute charging temperature, charging should be stopped.
• Please check the orientation of the positive and negative terminals before packaging.
•Connect the terminal or wire to the battery module, and pay attention to insulation to prevent short circuits.
• When not in use for a long time, the battery should be stored in a cool and dry place (<35°C, 30%~50% SOC, charge and discharge once every 3 months).
• Do not place the battery in direct sunlight or a heat source.
• Do not wear metal jewelry (such as rings, watches, accessories, etc.) when handling the battery unit.
Prohibited Matters
Do not charge beyond the maximum charging rate.
Do not disassemble or modify the battery.
Do not throw or hit the battery.
Do not pierce the battery with sharp objects (such as nails, knives, pens, or electric drills).
Do not mix with other types of batteries or modular units.
Do not excessively squeeze the battery during use.
Do not place the battery in a high temperature greater than 60°C.
Do not use conductive materials to connect the positive and negative terminals (such as metals, and wires).
Contact us:
More any questions about TezePower Battery?
Email: service@tezepower.com