Low Voltage Rack-Mounted Energy Storage Battery
Grade A LFP(lithium iron phosphate) cells to ensure safety and performance
LFP (lithium iron phosphate) cell to ensure the highest safety
Product Details
Watt Low Voltage Rack-Mounted Energy Storage Battery
The Watt Low Voltage Rack-Mounted Energy Storage Battery is designed for residential, commercial, and light industrial energy storage applications. Built with Grade A LFP (Lithium Iron Phosphate) cells, it delivers exceptional safety, long cycle life, and stable performance for solar self-consumption, backup power, and hybrid energy systems.
Engineered in a compact rack-mount format, this system is ideal for installations where scalability, efficiency, and space optimization are critical.
Key Benefits
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High Safety LFP Technology
Lithium Iron Phosphate chemistry ensures superior thermal stability, fire resistance, and long-term reliability. -
Long Cycle Life
Designed for up to 8,000 charge cycles, delivering consistent performance over many years of operation. -
Modular & Scalable Design
Easily expandable through parallel connection, allowing energy capacity to grow as demand increases. -
Smart Battery Management System (BMS)
Built-in BMS provides comprehensive protection against over-voltage, over-current, temperature fluctuations, and state-of-charge imbalance. -
Efficient & Eco-Friendly
High round-trip efficiency supports maximum solar utilization while reducing dependence on the grid. -
Compact Rack-Mounted Installation
Space-saving design suitable for energy rooms, cabinets, and structured battery racks.
Features Overview
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Multiple operating modes
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Customizable capacity configurations
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WiFi & Bluetooth monitoring support
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Compatible with most low-voltage inverters
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Parallel connection support for larger systems
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Stable output for day & night energy usage
Ideal Applications
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Residential solar energy storage
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Commercial backup power systems
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Hybrid solar + grid solutions
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Telecom and utility energy support
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Data rooms and energy storage cabinets
Why Choose Watt Energy Storage
Watt energy storage solutions are built with a focus on safety, performance, and scalability. Every system is engineered to meet modern energy demands while offering long service life, intelligent control, and dependable operation across diverse environments.
General Information
| Rated Voltage | 51.2Vdc | |
| Rated Capacity | 280Ah | 300Ah |
| Rated Energy | 14.336kWh | 15.36kWh |
| Output Voltage Range | 44.8V – 57.6V | |
| Charging Voltage (MAX) | 58.4V | |
| Cut-Off Voltage | 40V | |
| IP Rating | IP21 | |
| Recommended Charging Current | 56A | 60A |
| Max. Discharging Current | 150A | |
| Efficiency (Round Trip) | ≥98% | |
Physical Information
| Dimensions (L × W × H) | 730 × 442 × 245 mm (5.5U) | |
| Weight | ≈111.5 kg | ≈115 kg |
| Humidity | 5% – 95% Relative Humidity | |
| 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 to 20 Years | |
| Mounting Options | Rack or Stack | |