DUAK SATHI

What is a Lithium ESS?


A Lithium Energy Storage System (Li-ESS) is an advanced energy backup and storage solution that stores power using lithium-ion technology — ideal for homes, industries, and solar systems. It includes

  • Lithium Battery Pack
  • Battery Management System (BMS)
  • DC–AC Inverter/Charger
  • Smart Monitoring System

It ensures high efficiency, safety, and long life, providing backup power whenever needed — during blackouts, nights, or high-tariff hours.

Core Components of DUAK Lithium ESS


Component Function
🔋 Lithium Battery Pack Stores energy ( LiFePO₄)
🧠 BMS (Battery Management) Manages health, safety, cell balance
🔄 Inverter/Converter Converts DC ↔ AC, connects to grid & solar
🌐 Communication Interface Remote monitoring via RS485 / CAN / Wi-Fi / Bluetooth
🔌 Input/Output Ports Connects to grid, solar, and loads


  • Safety & Protection Features

    🔌 Overvoltage & Undervoltage Protection

    🔥 Automatic Over-Temperature Shutdown

    ⚡ Short-Circuit and Surge Protection

    📱 Mobile App Alerts and Monitoring

    🧠 Smart BMS with Active Cell Balancing
  • Why Choose DUAK Lithium ESS?

    🔌 Overvoltage & Undervoltage Protection

    🔥 Automatic Over-Temperature Shutdown

    ⚡ Short-Circuit and Surge Protection

    📱 Mobile App Alerts and Monitoring

    🧠 Smart BMS with Active Cell Balancing
  • Ideal Applications

    🏡 Residential Energy Backup

    ☀️ Solar Rooftop Storage

    🏢 Office & Commercial Peak Shaving

    🏫 Schools, Hospitals, Telecom Towers

    🚗 EV Charging Station Backup

    🏞️ Off-Grid Villages, Cabins


5. Key Benefits of DUAK Lithium ESS – In Detail


DUAK Lithium ESS packs more power in a smaller footprint. This means you can install a higher-capacity battery without occupying much space—ideal for homes and businesses with limited room.
➡ Save space, store more energy.

Using advanced LiFePO₄ (LFP) technology, DUAK batteries offer over 6000 charge-discharge cycles at 80% Depth of Discharge (DoD), ensuring 10 to 15 years of dependable use with minimal capacity loss.
➡ One investment for a decade or more.

DUAK Lithium Batteries charge 2 to 3 times faster than traditional lead-acid batteries, making them ready for use in less time. Perfect for locations with intermittent solar power or quick recharge requirements.
➡ Faster energy, greater efficiency.

When grid power fails, DUAK ESS instantly switches to stored energy, ensuring zero downtime. There’s no lag, no flicker—just smooth and reliable power to critical appliances or full homes.
➡ Stay powered, always.

Optimized for solar applications, DUAK batteries can store surplus daytime solar energy and discharge it at night or during cloudy weather, maximizing the value of your solar system.
➡ Store the sun, use it anytime.

By using stored energy during peak tariff hours, you reduce reliance on costly grid electricity. DUAK systems support time-of-use optimization, making them ideal for reducing monthly power bills.
➡ Smarter energy, lower bills.

Equipped with a high-performance Battery Management System, DUAK ESS constantly monitors temperature, voltage, current, and health of each cell. It automatically protects against:

1. Over/Under Voltage

2. Overheating

3. Short-Circuits

Overcharging/Deep Discharge
➡ Advanced protection, peace of mind.

Users can track battery performance via mobile app, touchscreen display, or remote dashboard. Live status of charge level, health, input/output power, temperature, and alerts can be monitored 24×7.
➡ Full control in your hands.

DUAK Lithium batteries use non-toxic, lead-free, and acid-free materials. The batteries are recyclable and have minimal environmental impact—supporting green energy goals and clean technology.
➡ Clean energy for a cleaner tomorrow.