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Felicity Solar FLA 48460TG2-EU Low-Voltage Battery – 51.2V / 23.5 kWh

Description

Product information

The Felicity Solar FLA 48460TG2-EU is a giant among home storage systems. With an enormous capacity of 23.5 kWh in a single housing, this 48V block redefines what a powerful all-in-one storage system can achieve. Instead of many small modules, you get a massive energy storage unit for maximum autonomy.

This floor-mounted solution is based on safe LiFePO4 technology and is aimed at large PV systems, multi-family houses or commercial use. The TG2 version also offers modern features such as integrated WiFi/Bluetooth for real-time monitoring and an aerosol fire extinguishing system.

Highlights at a glance

  • Gigantic capacity (23.5 kWh / 460 Ah): A single block stores an extremely large amount of energy and reduces space requirements, wiring and installation effort.
  • High performance (up to 12.5 kW): Designed for 250A continuous charge/discharge current and 500A peak (15s) – ideal for high loads and powerful hybrid systems.
  • Monitoring integrated (WiFi/Bluetooth): Real-time monitoring of status, performance and system data directly via wireless connection.
  • LiFePO4 cell chemistry: Lithium iron phosphate is considered particularly thermally stable and safe for stationary storage systems.
  • Safety setup: Integrated Smart-BMS as well as breaker & fuse; additionally aerosol fire extinguishing system.
  • External fuse (easy replacement): The external fuse design allows for service-friendly replacement.
  • Scalable up to 15 units: Parallel connection of up to 15 storage units (up to 352.5 kWh) for large systems.
  • Long service life: Designed for ≥ 6000 cycles (Test condition: 25°C ±2°C, 0.5C/0.5C, 90% DoD, 70% EOL).

Areas of application

The FLA 48460TG2-EU is the solution for power users and large consumers:

  • Maximum autonomy: More energy at home, less grid consumption – even in bad weather.
  • Commercial & multi-family houses: High capacity and power reserve for demanding load profiles.
  • Backup systems: High continuous output for emergency/back-up power scenarios (note system design).
  • Scalable storage parks: Up to 15 units in parallel for very large capacities.

Installation & safety instructions

  • Logistics & weight: Product weight approx. 186.5 kg (packaging weight approx. 220 kg). Delivery is typically on a pallet/forwarding agent. Suitable lifting/transport equipment must be planned for bringing in.
  • Installation location: Floor-mounted. The surface must be level and load-bearing. Dimensions: 570 x 250 x 980 mm (W x D x H).
  • Cable cross-section: For possible currents up to 250A, large cross-sections are usual. Please design the cross-section/protection according to standards, cable length and manufacturer specifications.

Properties

ModelFelicity Solar FLA 48460TG2-EU
TechnologyLiFePO4 (Lithium iron phosphate)
Nominal voltage51.2 V
Energy content23.5 kWh
Operating voltage44.8 – 57.6 V
Max. continuous current (charge/discharge)250 A (depends on temperature & SOC)
Peak current (15s)500 A
Max. charge/discharge power12,500 W
Depth of discharge (DoD)≥ 95%
CommunicationRS485 / CAN
Protection typeIP21
Cycles lifetime≥ 6000 (25°C ±2°C, 0.5C/0.5C, 90% DoD, 70% EOL)
Temperature range charging0°C to +55°C
Temperature range discharging-20°C to +55°C
DisplayLCD + LED
MountingFloor-mounted (Floor-Mounted)
Protection / ComponentsSmart BMS, Breaker, Fuse (integrated)
Warranty10 years
CertificationUN38.3
Weight186.5 kg (product) / 220 kg (packed)
Dimensions (W x D x H)570 x 250 x 980 mm


FAQs for the Felicity FLA 48460TG2-EU

How long does it take to charge this battery?

That depends on the available charging power of your inverter. With high charging power, the storage unit can be filled very quickly: At up to 12.5 kW (theoretical maximum), in practice this often corresponds to around about 2 hours for a full charge – depending on SOC, temperature and system limitations.

Can I connect two of them in parallel?

Yes. The storage unit is designed for parallel connection. With two units you get approx. 47 kWh capacity. In total, up to 15 units are possible in parallel (up to 352.5 kWh).

How does the battery communicate with the inverter?

Via CAN or RS485. Please check the compatibility and the necessary pin assignment/protocol selection in the documentation of your inverter.

 

Scope of delivery: Felicity Solar FLA 48460TG2-EU (23.5 kWh LV battery storage)

 

1 x Felicity Solar FLA 48460TG2-EU battery module

  • A massive upright 51.2V LiFePO4 energy storage with a high capacity of 460 Ah (23.55 kWh) and integrated battery management system (BMS).

1 x set of DC power cables (power cable)

  • A pair of high-current cables (plus and minus) for electrical connection of the storage unit to the low-voltage inverter.

1 x BMS communication cable

  • A pre-assembled data cable (RJ45) for communication between the battery and the inverter via CAN or RS485 interface.

1 x earthing cable

  • A yellow-green protective earthing cable for safe earthing of the robust metal housing.

1 x wall mounting set / anti-tilt device

  • Special mounting accessories for attachment of the housing to a stable wall to prevent the heavy storage unit from tipping over.

1 x mounting kit (screws and accessories)

  • All required small parts, screws and connectors for professional mechanical and electrical installation.

1 x user manual (User Manual)

  • A technical manual with detailed installation instructions, pin assignments for communication and safety instructions.
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