4-Module Rack Battery System with 20.48kWh Capacity
The system is built from Felicity Solar FLH48100UMG1 battery modules. Each module provides 5.12kWh nominal energy, 51.2V nominal voltage and 100Ah nominal capacity. With 4 modules connected in the high-voltage configuration, the total system capacity reaches 20.48kWh.
This makes the Felicity Solar 20.48kWh battery system suitable for:
Residential solar battery storage
High-consumption home PV systems
Small commercial solar PV projects
C&I energy storage applications
Self-consumption optimisation
Backup power systems
Hybrid inverter battery storage
Installer-ready complete kits
Solar wholesaler and solar distributor project supply
LiFePO4 Chemistry for Long-Life Energy Storage
The Felicity Solar 20.48kWh system uses LiFePO4 battery chemistry, also known as lithium iron phosphate. This chemistry is widely used in professional energy storage because it offers stable performance, long cycle life and good thermal characteristics for daily solar battery operation.
According to the Felicity Solar datasheet, the FLH Series system is rated for more than 6000 cycles and includes a 10-year warranty, making it suitable for long-term solar PV storage projects where daily charging and discharging are expected.
Rack-Mounted Design for Installer-Friendly Projects
The Felicity Solar 20.48kWh high-voltage battery system uses a rack-mounted installation format. This helps professional installers create a clean, serviceable and space-efficient energy storage layout in technical rooms, plant rooms, utility areas and protected indoor installation spaces.
The rack-based system design supports organized battery module placement, easier access for service work and a professional installation appearance during project handover. The datasheet specifies rack mounting and an IP21 enclosure rating, meaning the product is intended for protected indoor environments, not exposed outdoor installation.
Built-In Smart BMS, Breaker and Protection
The Felicity Solar FLH Series is designed with built-in protection for professional battery storage applications. The datasheet lists built-in smart BMS and breaker protection, while the datasheet feature page also highlights protection against over-voltage, over-current, external short circuit, reverse polarity or grounding fault and over-temperature conditions.
For installers and electricians, these system protections are important for correct energy storage integration, safe commissioning and long-term project reliability. As with all high-voltage energy storage systems, installation must be carried out by qualified professionals following Felicity Solar documentation and local electrical regulations.
CAN and RS485 Communication for Hybrid Inverter Integration
The Felicity Solar 20.48kWh high-voltage battery system supports CAN and RS485 communication, making it suitable for communication with compatible hybrid inverters and system controllers. The installation guide includes wiring, communication connection, DIP switch configuration and commissioning guidance for the FLH battery system.
Before ordering or installing, confirm inverter compatibility, firmware requirements and final system design with the latest Felicity Solar documentation. You need assistance? Contact us
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