The G-CUBE 61 / 71 kWh Outdoor ESS is part of ZWAYN ENERGY's g cube series range. Built on automotive-grade LiFePO4 cells with a self-developed smart BMS, it delivers safe, scalable energy storage for homes and businesses in 100+ countries. ZWAYN ENERGY has shipped 12 GWh of storage worldwide and backs every unit with a 10-year warranty.
Product
G-CUBE 61 / 71 kWh Outdoor ESS
LiFePO4 battery energy storage · 10-year warranty · delivered to 100+ countries

Price on request
- Automotive-grade LiFePO4 cells
- Self-developed smart BMS with cloud monitoring
- 10-year warranty, 15-year design life
- Quoted per project — reply within 12 hours
Key Benefits
- Supports 6–7 battery modules in series for flexible expansion.
- Compact design for easy transport and installation.
- OTA remote upgrades for simple maintenance.
- Smart master-slave identification without DIP settings.
- WiFi remote monitoring anytime, anywhere.
- Cloud-based 2A active balancing for accurate SOC management.
- Cloud BMS balancing extends battery life to over 10 years.
- Direct cluster connection without a combiner box, reducing costs.
Specifications
Specifications
| Model | G-CUBE 61 · G-CUBE 71 |
|---|
Main Parameters
| Battery Type | LiFePO4 |
|---|---|
| Rated Capacity(Ah) | 100 |
| No. of System Module Series / Connections(Optional) | 6 · 7 |
| System Rated Voltage (V) | 614.4 · 716.8 |
| System Operating Voltage(V) | 537.6-891.2 · 827.2-806.4 |
| System Nominal Energy(kWh) | 61.44 · 71.68 |
| System Discharge Energy (kWh) | 58.98 · 88.81 |
| Charge / / Discharge / Current(A) | Rated Current · 50 |
| Max. Current | 100 |
| Overload Current | 115(10sec, 25°C) |
| Output Terminal / Voltage (AC side) | 400V@AC |
| PCS Matching Power (KW) | 50 |
| Status Indicator Light | Blue: energy storage system start status, green energy storage system operation status, red: energy storage system fault status |
| Communication Protocol | CAN2.0 |
| Operating Temperature Range("C) | -10-50 |
| Operating Humidity Range | $86% (No Condensation) |
| Operating Alitude | $2000m |
| System Cooling Method | Air Cooling |
| Waterproof Rating | IP55 |
| Fire Fighting System | Aerosol (optional in module) |
| Net Weight(kg) | 780 · 870 |
| Maximum Size(mm) | 1020°1080-1785 |
| Storage Temperature("C) | 0-35 |
| Recommended Depth of / Discharge(DOD) | 0.9 |
| Cycle Life | ≥8000 Cycles (25°C+2"C, 0.50, 80%DOD@65%EOL) |
| System Composition | BMS management system, fire protection system, / air-cooled unit, cabinet, PCS system |
| Certification | Cel: UL1973/IEC62619/CE/ROHS/MSDS/UN38.3 |
| Warranty | 5 Years(Under Warranty Terms) |
| Energy Throughput" | 134MWh · 166MWh |
| ES-BOX36 MAX | ES-BOX36 MAX+ / ES-BOX36F MAX+ |
| 14.34kWh | 16.08kWh |
| 280Ah | 314Ah |
| 200A | 200A |
≥10000 Cycles (25°C±2°C, 0.35C, 90%DOD@65%EOL)
| 460*880*245mm / (Excluding Wheels) | 460*880*245mm / (Excluding Wheels) |
|---|---|
| 122Kg | 123Kg |
| 62MWh | 70MWh |
Request a quote
Pricing for the G-CUBE 61 / 71 kWh Outdoor ESS is quoted per project. Send us your load profile, grid conditions and quantity, and our engineering team will size the system and come back with a quotation — usually within 12 hours.