51.2V 400Ah Stackable Home Battery System

Reliable Residential Energy Storage | Modular Stackable Design | High-Safety LiFePO4 Technology

Key Information

  • The 51.2V 400Ah stackable home battery system is a high-capacity residential energy storage solution designed for solar self-consumption, backup power, and off-grid applications. Built with advanced lithium iron phosphate (LiFePO4) chemistry, it delivers stable output, long cycle life, and enhanced safety performance. The stackable architecture allows flexible expansion, making it ideal for scalable home and small commercial energy systems.
  • Feature:

  • Battery System: 51.2V 400Ah LiFePO4 stackable battery, 20.48kWh total energy, 6000 cycles & up to 90% DOD
  • Inverter Compatibility: Supports 48V/51.2V hybrid inverters, CAN/RS485 communication, smart BMS control
  • Energy Module: High-stability LiFePO4 cells with safe and consistent power output
  • Expansion Design: Stackable structure for parallel capacity increase and flexible system scaling
  • Application: Solar storage, home backup power, and off-grid residential energy use

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Product Introduction

The 51.2V 400Ah stackable home battery system is a high-capacity residential energy storage unit designed for flexible and reliable power use. It stores electricity from solar panels or the grid and delivers steady energy when demand increases or outages occur. Its stacked modular structure allows users to increase capacity step by step without replacing the whole system. Built with LiFePO4 technology, it ensures strong safety performance and long service life. Suitable for homes, small properties, and backup power setups, this system helps improve energy efficiency, reduce grid dependence, and provide stable electricity for daily household and emergency needs.

DC Side Parameters:

Project / ParameterMain Parameter / Specification
Cell TypeLiFePO4
Reference Voltage51.2V
Nominal Capacity200 Ah × 2
Rated Energy20480 Wh
Housing MaterialMetal Plate

AC Side Parameters:

Project / ParameterMain Parameter / Specification
Rated Power10000 VA / 10000 W
Surge Power20000 W
Wave FormPure Sine Wave
AC Output Voltage230/400 VAC (Three Phase)
Inverter Efficiency (Peak)≥92%
Input Voltage230/400 VAC (Three Phase)
Frequency Range50/60 Hz (Automatic Sensing)
MPPT Open Circuit Voltage800 VDC / 800 VDC
Maximum Input Current of MPPT22 A / 22 A
MPPT Power7500 W × 2
MPPT Voltage Range200–650 VDC / 200–650 VDC

System Parameters:

Project / ParameterMain Parameter / Specification
Size (L × W × H)760 × 600 × 800 mm
Weight228 kg ±1 kg

If you would like to learn more about the performance of our 51.2V 400Ah stackable home battery system, explore how it can support your residential energy needs, or discuss a customized configuration tailored to your project, please feel free to contact our team for detailed information and professional assistance.

Why Choose 51.2V 400Ah Stackable Home Battery System

In modern residential energy storage applications, selecting a reliable and scalable power solution is essential for achieving energy independence and long-term stability. The 51.2V 400Ah stackable home battery system is engineered to deliver consistent performance for solar energy storage, home backup power, and off-grid living environments. With its high-capacity design and modular stackable structure, it provides homeowners with a flexible and future-ready energy solution that adapts to growing power demands.

Modular energy storage

One of the key strengths of this system is its robust energy capacity and stable output performance. Built with advanced LiFePO4 chemistry, it ensures long cycle life, high safety standards, and excellent thermal stability. This allows the system to maintain reliable operation even under frequent charge and discharge conditions. The 400Ah capacity provides substantial energy reserves, making it suitable for running essential household appliances during outages or peak usage periods without interruption.

The stackable design is another major advantage, offering exceptional flexibility for system expansion. Users can easily add additional battery modules to increase total storage capacity without replacing the entire system. This modular approach not only reduces initial investment pressure but also supports long-term scalability as energy requirements grow. The vertical stacking structure also saves installation space, making it ideal for garages, utility rooms, or dedicated energy storage areas.

Home battery storage

Safety and intelligent control are at the core of this system. The integrated Battery Management System (BMS) continuously monitors voltage, current, and temperature to ensure optimal operating conditions. It provides multiple layers of protection, including overcharge, over-discharge, short circuit, and thermal protection. This smart management system enhances battery reliability while extending overall service life.

Compatibility is another important benefit. The system supports a wide range of 48V/51.2V hybrid inverters and integrates seamlessly with solar photovoltaic systems. It enables efficient energy storage during the day and reliable power supply at night or during grid failures. This makes it an ideal choice for households seeking to maximize solar self-consumption and reduce dependence on traditional electricity sources.

In addition, the system is designed with user convenience in mind. Its modular installation process simplifies setup, while low maintenance requirements ensure long-term hassle-free operation. Homeowners can enjoy stable energy performance without complex technical management.

Overall, the 51.2V 400Ah stackable home battery system offers a balanced combination of capacity, safety, flexibility, and efficiency. It is a dependable solution for modern homes aiming to achieve energy security, cost savings, and sustainable living through advanced lithium battery technology.

Overview

The system uses high-grade LiFePO4 prismatic cells with strong thermal stability and high safety performance. The enclosure is constructed from reinforced metal housing with anti-corrosion coating for long-term durability. Internal copper busbars ensure efficient current transfer and reduce internal resistance, improving energy efficiency and thermal management during continuous operation.

Residential power backup

Structural Design

  • Type: Stackable modular energy storage system
  • Installation Method: Floor-standing vertical stacking
  • Cooling Method: Natural cooling
  • Protection Level: Indoor residential / cabinet installation

Manufacturing Process

Each module is produced using automated assembly lines with strict quality control procedures. Cells are screened for consistency before integration. The built-in BMS provides real-time monitoring of voltage, current, and temperature, protecting the system against overcharge, over-discharge, short circuits, and overheating. Each unit undergoes capacity testing, aging tests, and safety verification before shipment to ensure stable long-term performance.

Business energy storage

Applications

The 51.2V 400Ah stackable battery system is widely used in residential solar energy storage, home backup power systems, and off-grid living environments. It is suitable for powering essential household appliances, supporting peak load shifting, and ensuring uninterrupted electricity supply during grid failures. The modular stackable design also makes it ideal for villas, small commercial buildings, and remote energy storage installations requiring scalable capacity.

Standards and Compliance

The system is designed in accordance with international safety and quality standards, including CE, UL, and RoHS compliance. It meets requirements for electrical safety, thermal stability, and mechanical durability in residential energy storage applications. The battery is engineered to operate reliably under variable environmental conditions, ensuring long-term safe performance and consistent energy output.

FAQ – 51.2V 400Ah Stackable Home Battery System

Q1: Is this system wall-mounted?
A: No, it is a floor-standing stackable energy storage system.

Q2: Can the capacity be expanded?
A: Yes, multiple modules can be stacked or connected in parallel for higher energy capacity.

Q3: Is it compatible with solar systems?
A: Yes, it supports most hybrid and off-grid solar inverter systems.

Q4: What is the lifespan?
A: The battery supports over 6000 charge-discharge cycles depending on usage conditions.

Q5: Does it support monitoring?
A: Yes, it supports BMS communication via CAN, RS485, and optional Bluetooth modules.

Layered Energy Structure

Designed with a multi-unit vertical arrangement that supports orderly stacking and organized energy distribution.

Consistent Module Synchronization

Ensures all connected battery units operate in harmony to maintain balanced system output.

High Utilization Storage Ratio

Optimized internal design allows more stored energy to be effectively accessed during operation.

Stable Output Regulation

Maintains smooth power delivery even when load demand fluctuates significantly.

Plug-and-Align Assembly Method

Simplified mechanical connection between units reduces setup complexity and alignment effort.

Extended Idle Preservation Ability

Retains stored energy efficiently over long standby periods with minimal natural loss.

Application

The 51.2V 400Ah stackable home battery system is suitable for residential energy buffering, small private workshops, temporary living units, and renewable-supporting installations. It can also be applied in backup setups for communication equipment rooms, small-scale power stabilization points, and mobile service stations. Its flexible structure makes it useful in environments requiring adjustable energy capacity and intermittent power supply support.

Solar energy battery

Residential Energy Buffering

The 51.2V 400Ah stackable home battery system is used in households to stabilize daily electricity usage and provide stored power during peak demand periods.

Residential UPS system

Small Workshop Support

It can supply steady energy for light-duty workshops, garages, and home-based production spaces that require reliable backup electricity.

Backup power home

Temporary Living Units

The system is suitable for mobile homes, rental units, and short-term living setups where flexible and independent power is needed.

Energy storage solution

Communication Backup Points

It can be deployed in small communication or network rooms to maintain stable operation during grid instability or outages.

Home energy management

Portable Service Environments

The system supports mobile service stations and temporary field operations that require adaptable and on-demand energy supply.

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