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This model will be shipped from China, about 45-60 working days after shipment!
【Scalable Capacity】
The BetterESS 48V/51.2V 30kWh All-in-One Battery, integrated with a powerful 12KW three-phase inverter, supports seamless parallel connection with identical models to scale up capacity. It is also compatible with the 30kWh expansion battery (BE-MB51600-300A-HWB), making it an ideal solution for large-scale energy storage needs. Please note: all parallel-connected batteries must be purchased from the same supplier and be of the same brand.
【Versatile Applications】
Designed with safety, efficiency, and sustainability in mind, the BetterESS 30kWh All-in-One LiFePO4 battery delivers exceptional energy density, extended lifespan, and superior temperature performance. Enjoy versatile charging options: harness solar energy, grid power, or both simultaneously for uninterrupted supply. It is perfect for solar-powered homes, off-grid living, emergency backup power, and eco-friendly energy solutions.
【Features】
Built to last over 10 years with 6000+ cycles at 80% DOD, this system offers extra safety through an active balancer and temperature-triggered LiFePO4 fire extinguisher. Its all-in-one design combines battery and inverter, making installation quick and hassle-free with plug-and-play convenience.
【Time-Slot Charging & Discharging】
The BetterESS 12 kW three-phase integrated system features intelligent time-slot charging and discharging. Users can set charging and discharging times to match local peak and off-peak electricity tariffs. During peak hours, the inverter supplies power from the battery; off-peak, it draws cheaper grid electricity to run the load and recharge—helping you cut energy costs efficiently.
Download Document
User Manual
| Specification | BE-AO-MB51600-AC380V-12KW-EU | BE-AO-MB51400-AC380V-12KW-EU |
|---|---|---|
| BATTERY TECHNICAL SPECIFICATION | ||
| Battery model | MB51600-300A-WIFI | MB51400-300A-WIFI |
| Number of batteries | 16 | 16 |
| Battery Energy | 30.72kWh | 20.48kWh |
| Battery Capacity | 600Ah | 400Ah |
| Weight | 238KG | 215KG |
| Dimension (L×D×H) | 750×500×845mm | 660×500×850mm |
| Battery Type | LiFePO4 | |
| Battery Rated Voltage | 51.2V | |
| Battery Working Voltage Range | 44.8～57.6V | |
| Maximum Charging Current | 300A | |
| Maximum Discharging Current | 300A | |
| DOD | 80% | |
| Designed Life-span | >6000 Cycles @0.2C/25℃ Charging/Discharging at 80%DOD, until 80% Capacity | |
| INVERTER TECHNICAL SPECIFICATION | ||
| Inverter model | SPI-12K-H3P | |
| PV CHARGE | ||
| Solar Charge Type | MPPT×2 | |
| Maximum Input Power | 9000W | |
| PV Charging Current Range | 22A+22A | |
| PV Operating Voltage Range | 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 | |
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