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The Price listed is the final price! Free shipping, free customs duties and tax, You don't need to pay any other fees.
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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