5kW off grid battery solar system Supplier
Our 5kW all-in-one solar energy storage systems combine reliable power conversion with flexible battery capacity from 15.36kWh to 30.72kWh. Designed for complete energy independence, these low-voltage integrated units provide seamless backup power and solar self-consumption for residential and small business applications.
Technical Specifications
| Parameter | LF-Stackable5+15AC | LF-Stackable5+20AC | LF-Stackable5+25AC | LF-Stackable5+30AC |
| Schematic diagram |  |  |  |  |
| Inverter Rating | 5kW (10kVA peak) | 5kW (10kVA peak) | 5kW (10kVA peak) | 5kW (10kVA peak) |
| Battery Capacity | 15.36kWh | 20.48kWh | 25.6kWh | 30.72kWh |
| Battery Voltage | 51.2V | 51.2V | 51.2V | 51.2V |
| Solar Input | 5kW max | 5kW max | 5kW max | 5kW max |
| Grid Charging | 3.15kW | 3.15kW | 3.15kW | 3.15kW |
| Output Voltage | 230Vac ±5% | 230Vac ±5% | 230Vac ±5% | 230Vac ±5% |
| Transfer Time | <15ms | <15ms | <15ms | <15ms |
| Protection Rating | IP20 | IP20 | IP20 | IP20 |
| Warranty | 5 years | 5 years | 5 years | 5 years |
Key Features
1. Seamless Power Transition
- <15ms automatic switchover ensures uninterrupted operation of sensitive electronics
- Pure sine wave output (THD <3%) protects all types of electrical equipment
2. Advanced Solar Integration
- 5kW MPPT solar charger with 120-450V operating range
- 80A maximum PV charging current for rapid solar replenishment
- Compatible with both mono and polycrystalline solar panels
3. Flexible Grid Interaction
- Wide input voltage range (90-280Vac) handles unstable grid conditions
- 3.15kW maximum AC charging for quick grid-powered recharge
- Configurable charging priorities to optimize energy costs
4. Scalable Battery Architecture
- Modular design allows capacity expansion from 15.36kWh to 30.72kWh
- LiFePO4 battery technology with 6000+ cycle lifespan
- Intelligent BMS with comprehensive protection systems
Application Scenarios
- Whole-house backup power systems
- Off-grid residential power solutions
- Small business energy independence
- Solar self-consumption optimization
- Remote cabin and vacation home power
- Emergency backup for critical loads
FAQ
Q: What’s the typical backup time for each capacity?
A: The 15.36kWh model powers a typical home (1-2kW load) for 7-15 hours, while the 30.72kWh unit extends this to 15-30 hours. Actual runtime depends on specific load requirements.
Q: Can the system be expanded after installation?
A: Yes, the modular design allows capacity upgrades from 15.36kWh to 30.72kWh by adding battery modules without replacing the inverter unit.
Q: What’s included in the 5-year warranty?
A: The warranty covers defects in materials and workmanship, with pro-rata coverage for battery capacity degradation below specified thresholds.
Why Choose Our All-in-One System?
- Proven Reliability: 6000+ cycle battery life ensures long-term performance
- Complete Integration: Pre-configured system reduces installation complexity
- Future-Proof Design: Scalable capacity adapts to growing energy needs
- Global Compliance: Meets international safety and quality standards
Ready to achieve energy independence? Contact our energy specialists for a free system design consultation.