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【Scalable Capacity】
The BetterESS 51.2V 16kWh All-in-One Off-Grid Energy Storage System, integrated with a powerful 6.5kW off-grid inverter, provides reliable and independent power for homes, cabins, RVs, workshops, and other off-grid applications.
The system can be connected with solar panels to store renewable energy and provide stable power when solar energy is insufficient. Please note: this is an off-grid system and is not designed to feed electricity back into the public grid.
【Versatile Applications】
Designed with safety, efficiency, and sustainability in mind, the BetterESS 16kWh All-in-One LiFePO4 Battery delivers excellent energy density, long service life, and reliable performance.
The system can be charged by solar energy and provides continuous AC power for your electrical appliances. It is ideal for off-grid homes, solar-powered systems, emergency backup power, RVs, cabins, workshops, remote areas, and other independent energy applications.
【Features】
Built to last over 10 years with 10000+ cycles at 80% DOD, this system provides reliable long-term energy storage.
The integrated Smart BMS with built-in active balancer helps maintain battery cell balance and improves battery safety, performance, and service life. The system is also equipped with a temperature-triggered LiFePO4 fire extinguisher for additional safety protection.
Its all-in-one design combines the battery and 6.5kW off-grid inverter into one integrated system, making installation quick and convenient with a plug-and-play design.
【Off-Grid Energy Management】
The BetterESS 6.5kW off-grid integrated system is designed to work with solar panels to provide an independent power supply.
During the day, solar energy can power connected loads while charging the battery. When solar power is insufficient, the stored battery energy supplies power to the loads, providing a stable and reliable energy supply.
With 16kWh of battery capacity and a 6.5kW off-grid inverter, the system is an ideal solution for customers looking for reliable, independent, and sustainable off-grid power.
Specifications
BATTERY SPECIFICATIONS
| Battery Model | AO-MB51314-6.5KW |
|---|---|
| Battery Energy | 16 kWh |
| Battery Capacity | 314 Ah |
| Battery Rated Voltage | 51.2V / 48.0V |
| Battery Working Voltage | 44.8V ~ 57.6V |
| Maximum Charging Current | 120A |
| Maximum Discharging Current | 140A |
| Battery Life | > 10,000 Cycles |
INVERTER SPECIFICATIONS – PV9000-48 S6.5
| AC Input | |
|---|---|
| Rated Input Voltage | 208 / 220 / 230 / 240 VAC; L + N + PE |
| Input Voltage Range | 90 ~ 280V (APP/GEN Mode); 170 ~ 264V (UPS Mode) |
| Frequency | 50 / 60 Hz (Auto Adaptive) |
| AC Output | |
| Rated Output Power | 6.5 kW |
| Surge Power | 12 kVA |
| Output Voltage | 208 / 220 / 230 / 240 VAC |
| Power Factor | 1 |
| Output Frequency | 50 / 60 Hz |
| Switch Time | 10 ms (APP/UPS Mode) / 20 ms (GEN Mode) |
| Wave Form | Pure Sine Wave |
| Overload Capacity | 1 min @ 102%–120% load; 10 s @ 120%–200% load |
| Maximum Efficiency (Battery Mode) | 94% @ 48 / 51.2VDC |
| Parallel Quantity | Supports up to 9 inverters in parallel |
| Solar Charger (PV / AC) | |
| Solar Charger Type | MPPT |
| Max. PV Input Current / Power | 27A / 9000W |
| MPPT Operating Range | 60 – 450V |
| Max. PV Open Circuit Voltage | 500V |
| Max. PV Charge Current | 120A |
| Max. AC Charge Current | 120A |
| Max. Charge Current (PV + AC) | 120A |
| Battery | |
| Rated Battery Voltage | 51.2VDC |
| Max. Charging Current | 120A |
| Max. Discharging Current | 140A |
| Battery Type | Lithium / Lead-acid |
| Communication Interface | RS232 / RS485 / CAN, CT (Optional) / Meter (Optional) |
| Monitoring | WiFi (Optional / Built-in / External) |
| General Data | |
| Ingress Protection | IP21 |
| Operating Temperature | -10°C ~ 60°C |
| Relative Humidity | 5% ~ 95% (Non-condensing) |
| Storage Temperature | -15°C ~ 60°C |
| Maximum Operating Altitude | 4000 m (Derating above 2000 m) |
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