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Description

Product information

The Felicity FLS48100SG2 battery storage system, with a capacity of 20.48 kWh, is the high-performance solution for anyone wishing to increase their self-consumption whilst permanently reducing their electricity costs. The system has been specially developed for households and small businesses that are committed to a future-proof and sustainable energy supply.

Highlights at a glance

  • High storage capacity: 20.48 kWh for large households and businesses
  • Modern LiFePO4 technology: Durable, safe and low-maintenance
  • Battery Management System (BMS): Protection and efficiency through integrated cell monitoring
  • Flexible integration: Compatible with many popular hybrid inverters
  • Compact design: Space-saving and modular design for easy expansion

Independent with clean electricity

The Felicity FLS48100SG2 stores solar power generated during the day and makes it available as and when required. This means you can cover a large proportion of your electricity needs with self-generated energy, even in the evening or on cloudy days. This not only reduces your electricity costs, but also your dependence on external suppliers.

Powerful and reliable for everyday use

The lithium iron phosphate (LiFePO4) technology used ensures maximum safety, a long service life and a high number of charge cycles. The integrated battery management system monitors the voltage, temperature and state of charge of each individual cell and protects the battery against overloading and deep discharge.

Easy integration into your PV system

Thanks to its modular and compact design, the storage unit can be easily integrated into existing systems. It is compatible with numerous hybrid inverters and is suitable for both new installations and retrofits. Floor mounting is space-saving and functional.

Who is the Felicity FLS48100SG2 with 20.48 kWh suitable for?

  • Owners of larger detached houses
     
  • Commercial users with constant energy requirements
     
  • PV system operators focusing on self-consumption
     
  • Users looking for a high-performance storage solution to meet future energy requirements


FAQs on the Felicity battery storage system with 20.48 kWh capacity

Can I increase the storage capacity by adding extra modules?

Yes, the system has a modular design. Each module has a capacity of 5.12 kWh, and up to 8 modules can be combined, allowing for a total capacity of up to 40.96 kWh.

Which inverters is the system compatible with?

The FLS48100SG2 is designed for seamless communication with common 48 V inverters, including models from Deye, Growatt, Victron, Solis, Sofar and MPP Solar.

What safety features are built in?

The integrated battery management system (BMS) continuously monitors the voltage, temperature and state of charge of each cell. It also features protective mechanisms such as overvoltage protection up to 6,000 V and an aerosol fire suppression system.

Is the module maintenance-free, and how is it installed?

Yes, the module is maintenance-free. It is designed for wall mounting and weighs between 51 and 92 kg, depending on the version. It can be installed by a single person.

Is there a way to monitor the battery status?

Yes, the module offers built-in Wi-Fi monitoring, which enables real-time monitoring of charge status, temperature and other parameters.



 

Contents of delivery: Felicity FLS48100SG2 battery storage unit (20.48 kWh tower system):

 

System configuration

  • This product is a set and consists of four separate modules, which together provide a total capacity of 20.48 kWh.

Module 1: FLS48100SCG2 Master Unit (5.12 kWh)

  • The central control unit (Master BMS) with an integrated 5.12 kWh storage unit, which manages the entire system.

Modules 2, 3 & 4: Three FLS48100S slave units (5.12 kWh each)

  • Three extension battery modules without their own control unit, which are connected to the master module or to each other.

1 set of battery connection cables (positive & negative)

  • A pair of high-performance cables for connecting the master module to an external hybrid inverter.

1 x communication cable (CAN/RS485)

  • A data cable for communication between the master BMS and the inverter.

3 x connecting bridge / parallel connection cable

  • Short, robust cables or fixed bridges to connect the four modules to one another.

1 x earth cable

  • A protective earth cable for the correct earthing of the housing (on the master module).

1 x set of mounting accessories (rack/tower mounting)

  • Includes screws and clamps to stack the four modules securely on top of one another.

1 x User and Installation Guide

  • A printed manual describing the installation of the entire tower system.
Properties
Battery technology: LiFePO4
Charge/discharge current (rated value): 200 A / 200 A
Communication: RS485 / CAN
Cycle life: ≥ 6,000 cycles (at 25 ± 2 °C, 70% EOL)
Dimensions (W x D x H): 600 x 450 x 720 mm
Maximum discharge current: 400 A (peak for 15 seconds)
Operating temperature (charging): 0 °C to +55 °C
Operating temperature (discharge): -20 °C to +55 °C
Operating voltage range : 44.8 ~ 57.6 V
Permissible humidity: 5% - 95%
Protection class: IP21
System capacity (rated value): 20.48 kWh
System nominal voltage : 51.2 V
Warranty: 10 years
Weight: approx. 210 kg
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