Residential Energy Storage System – Low Voltage Series
Residential Energy Storage System – Low Voltage Series
LFP (lithium iron phosphate) cell to ensure the highest safety
Product Details
Key Features:
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High Safety & Stability
Powered by advanced LFP battery technology, offering excellent thermal stability and enhanced safety for residential use. -
Long Cycle Life
Designed for extended durability with up to 8,000 charge cycles, ensuring years of dependable energy storage. -
Optimized Self-Consumption
Stores excess solar energy during the day and supplies power during the night, maximizing solar utilization. -
Grid Independence
Reduces reliance on public grids and helps protect against power outages. -
Eco-Friendly & Cost-Efficient
Low maintenance, high efficiency, and reduced electricity costs over time. -
Compact & Space-Saving Design
Lightweight, modern enclosure suitable for wall or floor installation.
Smart & Flexible Features
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Multiple Operating Modes for different energy scenarios
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Built-in BMS Protection against over-temperature, over-current, over-voltage, and short circuits
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Modular & Scalable Design – expandable capacity to meet growing energy demands
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Parallel Connection Support for multiple battery units
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Wi-Fi & Bluetooth Connectivity for monitoring and system management
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Custom Branding & Shell Colors available for projects and partners
Ideal Applications
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Residential solar energy storage
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Home backup power systems
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Off-grid and hybrid solar setups
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Small commercial or energy-conscious buildings
Why Choose Watt?
Watt energy storage solutions are engineered to combine safety, efficiency, and longevity, helping homeowners move toward smarter energy independence with confidence.
Product Specifications
General Information
| Rated Voltage | 51.2Vdc |
| Rated Capacity | 300Ah |
| Rated Energy | 15.36kWh |
| Output Voltage Range | 44.8V – 57.6V |
| Charging Voltage (Max) | 58.4V |
| Cut-Off Voltage | 40V |
| IP Rating | IP52 |
| Recommended Charging Current | 60A |
| Max Discharging Current | 150A |
| Efficiency (Round Trip) | ≥98% |
Physical Information
| Dimensions (L × W × H) | 825 × 413 × 230 mm |
| Weight | ≈114 kg |
| Humidity | 5% – 95% RH |
| Charging Temperature | 0°C – 55°C |
| Discharging Temperature | -20°C – 55°C |
| Storage Temperature | -10°C – 30°C |
| Cycle Life (0.2C, @25°C, 80% DoD) | ≥8000 Times |
| Design Life | 15 – 20 Years |
| Mounting Options | Wall or Stack |