51.2v Lithium Ion Battery Backup

Our 51.2 V lithium ion battery backup uses premium LiFePO₄ cells, providing 5.12 kWh nominal capacity and 4.61 kWh usable capacity. With RS485, CAN, and Bluetooth communication, a design life over 10 years, and more than 6,000 cycles at 90% DOD, it delivers safe and reliable backup power.

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Description

Introduction

Our 51.2 V lithium ion battery backup uses premium LiFePO₄ cells, providing 5.12 kWh nominal capacity and 4.61 kWh usable capacity. With RS485, CAN, and Bluetooth communication, a design life over 10 years, and more than 6,000 cycles at 90% DOD, it delivers safe and reliable backup power.

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

Premium LiFePO₄ Cells
Built with high‑grade lithium iron phosphate cells (internal resistance ≤ 5 mΩ), these cells ensure stable voltage, low thermal risk and reliable long‑term performance in demanding backup scenarios.

Advanced BMS Monitoring & Protection
The integrated Battery Management System continuously monitors cell voltages (2.5‑3.65 V each), pack current (0‑200 A), and temperature (‑20 °C to 60 °C), providing over‑charge, over‑discharge, short‑circuit and thermal protections, and maintaining optimal balance for longevity.

Scalable Capacity & High Output
Nominal 51.2 V system supports capacities from ~10 kWh to 15 kWh per unit, with continuous discharge at ~100 A and short‑term peaks up to ~200 A. Multiple units may be combined in series or parallel for larger storage needs without compromising performance.

Extended Cycle Life
Rated for over 6,000 full charge/discharge cycles at 80% depth of discharge under 25 ± 5 °C conditions, providing long‑term reliability and cost‑effective energy storage across years of operation.

Industrial‑Grade Environmental Design
Operational temperature range 0 °C to 40 °C, storage range –20 °C to 70 °C, and humidity tolerance of 10 %–80 % RH. Designed for real‑world home backup installations with minimal performance degradation.

Applications

Ideal for home backup power, off-grid cabins, and solar-plus-storage systems. Integrates easily with inverters and energy management systems, providing consistent, reliable energy supply for homes and small businesses during outages or high-demand periods.