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

  • 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

  • Multiple operating modes

  • Customizable capacity configurations

  • WiFi & Bluetooth monitoring support

  • Compatible with most low-voltage inverters

  • Parallel connection support for larger systems

  • Stable output for day & night energy usage

Ideal Applications

  • Residential solar energy storage

  • Commercial backup power systems

  • Hybrid solar + grid solutions

  • Telecom and utility energy support

  • 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