Lithium Battery Module

This 51.2 V lithium battery module uses high-quality LiFePO₄ cells, offering 5.12 kWh nominal capacity and 4.6 kWh usable energy. Designed for long-term reliability with over 6,000 cycles at 90% DOD, it features RS485, CAN, and Bluetooth communication and is suitable for residential or commercial energy storage systems.

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Description

Introduction

This 51.2 V lithium battery module uses high-quality LiFePO₄ cells, offering 5.12 kWh nominal capacity and 4.6 kWh usable energy. Designed for long-term reliability with over 6,000 cycles at 90% DOD, it features RS485, CAN, and Bluetooth communication and is suitable for residential or commercial energy storage systems.

Parameter

Basic Parameters	Numerical
Nominal Voltage (V)	51.2
Nominal Capacity (WH)	5120
Usable Capacity (WH)	4608
Discharge Voltage (V)	46
Charge Voltage (V)	56
Recommend Charge/ Discharge Current (A)	50
Max. Charge/ Discharge Current(A)	100(3s)
Communication	RS485/CAN/Bluetooth
Working Temperature	0-40℃
Storage Temperature	-20-70℃
Humidity	10%-80%
Certification	CE/ IEC/ UN38.3/ MSDS
Design Life	10 years+
Cycle Life	>6000@90%DOD(25±5℃)

Features

Advanced Li‑ion Cell Technology
Utilizes high‑quality lithium iron phosphate (LiFePO₄) cells with nominal voltage of 3.2 V per cell, assembled into 48–51.2 V modules. These cells offer stable voltage under varying loads, low thermal runaway risk, high energy density, and consistent performance for long-term residential use.

Robust BMS Protection System
The integrated Battery Management System actively monitors voltage, current, and temperature of each cell. It provides over‑charge, over‑discharge, over-current, short‑circuit, and thermal protections while performing cell balancing to extend overall module life. Accuracy: ±0.01 V per cell, ±0.1 A for current, temperature monitoring −20 °C to 60 °C.

High Charge/Discharge Capability
Designed for continuous discharge currents of ~50 A and short-term peaks up to ~100 A, supporting modern household appliance loads and sudden surges. Charge currents up to ~50 A ensure fast replenishment from solar PV or grid sources without compromising safety.

Long Cycle and Service Life
Tested to exceed 6,000 full charge/discharge cycles at 90% depth of discharge. Under standard residential conditions, the module offers a design life beyond 10 years, providing stable performance and low total cost of ownership.

Flexible Connectivity and Integration
Supports RS‑485, CAN, and Bluetooth communication protocols for seamless monitoring and integration with residential energy management systems and mainstream inverters. This flexibility allows real-time performance tracking, remote diagnostics, and simplified system expansion.

Applications

Suitable for residential solar storage, home backup power, and smart energy management systems. Easily integrates with standard inverters and supports flexible configurations, delivering reliable, efficient, and stable energy supply for modern homes in Europe and the U.S.