Residential Energy Storage
HWOO Pre-20 20.07kWh Battery
The Pre-20 provides 20.07kWh for multi-day backup or high-consumption homes. Integrated casters and 15-unit parallel expandability make it a flexible mid-size ESS building block.
Battery Type: LiFePO4 (Lithium Iron Phosphate)
Rated Voltage: 51.2V
Rated Energy: 20.07kWh
Rated Capacity: 392Ah
Minimum Order: 10 units
Lead Time: 15-25 days
Technical Specifications
| Battery Type | LiFePO4 (Lithium Iron Phosphate) |
| Rated Voltage | 51.2V |
| Rated Energy | 20.07kWh |
| Rated Capacity | 392Ah |
| Standard Charge-Discharge Power | 8192W |
| Max. Continuous Charge-Discharge Power | 10240W |
| Max. Parallel Units | 15 |
| Installation | Floor-standing (with casters) |
| Dimensions (W×D×H) | 410×245×873mm |
| Weight | 155±5kg |
| Cycle Life | 8000 cycles @80% DOD, 70% EOL |
| IP Rating | IP20 |
| Communication | RS485 / CAN |
| Certifications | UN38.3, IEC62619, IEC61000 |
Key Features
Advanced BMS with active fuse for maximum safety
GaN MOSFET design: 50% lower power loss and high-temperature resistance
Integrated pack: reduced line loss and improved energy density
Reliable operation from -20°C to 55°C with natural cooling
Automatic networking with local and remote battery monitoring
20kWh class capacity for long autonomy
392Ah cells
Up to 15 units in parallel
Minimum Order: 10 units
Lead Time: 15-25 days
Applications
Extended backupHigh-consumption homesSmall commercial storage
Target Markets
AfricaSoutheast AsiaMiddle EastCentral Asia