BetterESS 51.2V 400Ah 20KWh LiFePO4 Battery IP65 with Active Balancer for Home Energy Storage

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20KWh High-Capacity Energy Storage for Home & Backup Power

The BetterESS 51.2V 400Ah 20KWh LiFePO4 Battery is designed for reliable home energy storage, backup power and solar energy applications. With a large 20KWh usable battery capacity, an IP65-rated enclosure, active cell balancing and WiFi monitoring, it provides a practical energy storage solution for both indoor and sheltered outdoor installations.

Built with LiFePO4 battery cells, the system offers excellent cycle life, high safety and stable performance for long-term energy storage.

Key Features

🔋 20KWh Large Energy Capacity
With a nominal voltage of 51.2V and a capacity of 400Ah, this battery provides approximately 20.48KWh of nominal energy capacity, making it suitable for daily energy storage and backup power applications.

⚖️ Active Cell Balancing
The integrated active balancing function helps maintain better voltage consistency between battery cells, supporting stable battery operation and improving overall pack performance.

📶 WiFi Monitoring
The built-in WiFi function allows users to monitor important battery information remotely through the supported monitoring system, making it easier to check battery status and operating conditions.

🛡️ IP65 Protection
The IP65-rated enclosure provides protection against dust and water jets, making the battery suitable for sheltered outdoor installation as well as indoor energy storage applications.

🔥 Built-in Fire Extinguisher
The battery is equipped with a built-in fire suppression/extinguishing device as an additional safety feature, providing an extra layer of protection inside the battery enclosure.

🔋 LiFePO4 Battery Technology
LiFePO4 chemistry offers excellent thermal stability, long service life and reliable performance, making it well suited for residential energy storage applications.

Designed for Home Energy Storage

The BetterESS 20KWh battery can be used for a variety of energy storage scenarios, including:

• Solar energy storage

• Home backup power

• Off-grid energy systems

• Daily energy storage

• Self-consumption applications

• Emergency power backup

• Residential and small commercial energy storage

Smart & Practical Battery Design

Combining 20KWh capacity, IP65 protection, active balancing and WiFi monitoring in one battery system, BetterESS provides a convenient solution for customers looking for a high-capacity 51.2V energy storage battery.

The system can be paired with a compatible inverter to build a complete home energy storage solution.

Specification

A Reliable 20KWh Battery for Your Energy Storage System

Whether you need additional storage for your solar system, reliable backup power for your home, or a high-capacity battery for an off-grid application, the BetterESS 51.2V 400Ah 20KWh LiFePO4 Battery combines high capacity, smart monitoring and enhanced protection in a practical IP65 enclosure.