Low Voltage Wall-Mounted Energy Storage Battery (Gen-2)

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 Wall-Mounted Energy Storage Battery

Safe. Smart. Reliable Energy Storage for Everyday Power Needs

The Watt Low Voltage Wall-Mounted Energy Storage Battery is designed to deliver stable, efficient, and long-lasting power for residential and light commercial applications. Built with Grade-A LFP (Lithium Iron Phosphate) cells, it ensures superior safety, consistent performance, and extended service life—making it ideal for solar self-consumption and backup power solutions.

Why Choose Watt Energy Storage?

  • Maximum Safety
    Uses advanced LFP battery chemistry, known for thermal stability, low risk, and long lifespan.

  • Long Cycle Life
    Engineered to deliver up to 6,500 charge cycles, ensuring reliable energy storage for many years.

  • Smart Energy Management
    Supports efficient energy usage during both day and night, reducing dependence on the public grid.

  • Compact & Space-Saving Design
    Wall-mounted structure fits easily into garages, utility rooms, and solar power setups.

  • Eco-Friendly & Cost-Efficient
    Helps lower electricity bills while supporting sustainable energy usage.

Key Features

  • Grade-A Lithium Iron Phosphate (LFP) cells

  • Built-in Battery Management System (BMS) for protection against over-voltage, over-current, temperature, and short circuits

  • High round-trip efficiency for minimal energy loss

  • Modular design – scalable to meet growing energy demands

  • Wi-Fi & Bluetooth monitoring for real-time system status

  • Compatible with most leading inverters

  • Supports parallel connection for expanded storage capacity

Ideal Applications

  • Residential solar energy storage

  • Home backup power systems

  • Villas, apartments, and smart homes

  • Small commercial and office installations

  • Energy optimisation and load shifting

Installation & Reliability

  • Wall-mounted installation for easy setup

  • Designed for indoor use with controlled environmental conditions

  • Stable operation across a wide temperature range

  • Low maintenance with long design life

Watt Advantage

With Watt Energy Storage, you gain dependable power, enhanced energy independence, and peace of mind—backed by advanced battery technology and intelligent design.

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) 540 × 495 × 155 mm 780 × 495 × 217 mm
Weight ≈44.5 kg ≈80 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 Wall