Fsolar Lithium Battery 120AH 51.2V 6kWh LiFePO4 Alpha Series

FSolar 6kWh 51.2V 120Ah LiFePO4 Lithium Battery

The FSolar 6kWh 51.2V 120Ah LiFePO4 Lithium Battery is a high-performance rechargeable energy-storage battery designed for solar power systems, hybrid inverters, home backup, commercial backup, and off-grid applications.

Built with advanced LiFePO4 lithium iron phosphate technology, the battery provides stable charging and discharging performance, dependable energy storage, and a cycle life of more than 6,000 cycles. Its 51.2V system voltage and 120Ah capacity make it suitable for compatible 48V solar inverter and energy-storage systems.

Reliable 6kWh Energy Storage

The battery provides approximately 6kWh of stored energy, making it suitable for storing excess solar power during the day and supplying that energy at night, during low solar production, or when utility electricity is unavailable.

It can be used for:

• Residential solar energy storage
• Home backup power
• Hybrid inverter systems
• Off-grid solar installations
• Shops and office backup
• Farms and remote properties
• Commercial energy-storage systems

Long-Life LiFePO4 Technology

LiFePO4 technology is designed to provide stable voltage delivery, strong thermal performance, and reliable operation for frequent charging and discharging.

The battery offers a cycle life of more than 6,000 cycles, supporting long-term use in daily solar energy-storage applications.

Smart Battery Management System

The integrated Battery Management System helps monitor battery operation and provides essential protection during charging and discharging.

Protection functions listed in the datasheet include:

• Over-voltage protection
• Low-voltage protection
• Temperature control
• Overload protection
• Short-circuit protection
• Surge protection

These protections help maintain stable battery operation when the system is correctly installed and configured.

Charging and Discharging Performance

The FSolar 6kWh battery supports an optimum charging current of 60A and a maximum continuous discharge current of 100A.

Electrical Parameters

• Rated voltage: 51.2V
• Rated capacity: 120Ah
• Charge cut-off voltage: 58.4V
• Discharge cut-off voltage: 43.2V
• Optimum charge current: 60A
• Maximum continuous discharge current: 100A

The inverter or charger settings must be configured according to these battery parameters.

Wide Communication Compatibility

The battery supports several communication interfaces for integration with compatible solar inverters and energy-management systems:

• RS485
• RS232
• CAN
• UART

Battery communication compatibility and the correct protocol must be confirmed before installation.

Expandable Battery Capacity

Up to six compatible batteries can be connected in parallel, allowing the energy-storage capacity to be expanded as system requirements increase.

This scalable design makes the battery suitable for both individual residential systems and larger commercial or off-grid installations.

IP55 Protection

The battery has an IP55 ingress-protection rating, providing protection against dust and water exposure when installed correctly in an appropriate location.

Its compact floor-standing enclosure provides a practical energy-storage solution for residential and commercial installations.

Operating Temperature

The battery is designed to operate across a broad temperature range:

• Charging temperature: 0°C to 60°C
• Discharging temperature: -20°C to 60°C

Key Features

• 6kWh lithium energy-storage battery
• 51.2V rated voltage
• 120Ah capacity
• LiFePO4 lithium iron phosphate technology
• More than 6,000 cycles
• 60A optimum charging current
• 100A maximum continuous discharge current
• Intelligent Battery Management System
• Over-voltage and low-voltage protection
• Temperature, overload, and short-circuit protection
• RS485, RS232, CAN, and UART communication
• Up to six batteries in parallel
• IP55 ingress protection
• Suitable for solar, hybrid, backup, and off-grid systems

Technical Specifications