Low Voltage Rack-Mounted Energy Storage Battery (LFP)

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 System

Safe. Stable. Sustainable Power Storage

The Watt Low Voltage Rack-Mounted Energy Storage System is designed to deliver reliable, efficient, and long-lasting energy storage for residential, commercial, and hybrid solar applications. Built with advanced Grade A LFP (Lithium Iron Phosphate) cells, this system ensures maximum safety, consistent performance, and extended service life.

With a modular rack-mount design, it is ideal for projects requiring scalable energy storage, easy integration with inverters, and space-efficient installation.

Key Highlights

  • Grade A LFP Battery Technology
    Ensures superior safety, thermal stability, and long cycle life.

  • Long Cycle Life
    Designed for up to 6,500+ charge cycles, delivering dependable performance over many years.

  • Built-in Smart BMS
    Advanced Battery Management System protects against over-voltage, over-current, temperature fluctuations, and state-of-charge imbalances.

  • Modular & Scalable Design
    Supports parallel connection for expanding storage capacity as energy needs grow.

  • High Efficiency Performance
    Round-trip efficiency of ≥98%, minimizing energy loss.

  • Compact Rack-Mounted Form Factor
    Saves space and allows clean, organized installations in energy storage cabinets or server racks.


Low Voltage Series – Designed for Everyday Energy Independence

  • Optimized for day & night self-consumption

  • Reduces dependence on the public grid

  • Cost-effective and eco-friendly energy storage

  • Lightweight, safe, and space-saving design

  • Flexible installation for residential and commercial environments

Applications

  • Residential solar energy storage

  • Commercial & industrial energy backup

  • Hybrid solar power systems

  • Telecom and data room backup

  • Off-grid and microgrid solutions

Customization Options

  • Custom branding with the Watt logo

  • Multiple shell color options

  • Configurable capacity based on project needs

  • WiFi & Bluetooth monitoring (optional)

Why Choose Watt?

Watt energy storage solutions are engineered for performance, safety, and scalability. Whether you’re building a compact home energy system or a large multi-rack installation, Watt delivers dependable power storage that grows with your needs.

General Information
Rated Voltage 51.2Vdc
Rated Capacity 100Ah 200Ah
Rated Energy 5.12kWh 10.24kWh
Output Voltage Range 44.8V – 57.6V
Charging Voltage (MAX) 58.4V
Cut-Off Voltage 40V
IP Rating IP21
Recommended Charging Current 20A 40A
Max. Discharging Current 100A
Efficiency (Round Trip) ≥98%
Physical Information
Dimensions (L × W × H) 480 × 442 × 155 mm (3.5U) 680 × 442 × 222 mm (5U)
Weight ≈44.5 kg ≈86 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) ≥6500 Times
Design Life ≥15 Years
Mounting Options Rack, Stack or Wall