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

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

This floor-mounted solution is based on safe LiFePO4 technology and is designed for large PV systems, blocks of flats or commercial premises. The TG2 version also offers advanced features such as integrated Wi-Fi/Bluetooth for real-time monitoring and an aerosol fire suppression system .

Highlights at a glance

• Enormous capacity (23.5 kWh / 460 Ah): A single unit stores an extremely large amount of energy and reduces space requirements, cabling and installation effort.
• High power (up to 12.5 kW): Rated for 250 A continuous charge/discharge current and 500A peak (15s) – ideal for high loads and high-performance hybrid systems.
• Integrated monitoring (Wi-Fi/Bluetooth): Real-time monitoring of status, performance and system data directly via a wireless connection.
• LiFePO4 cell chemistry: Lithium iron phosphate is considered to be particularly thermally stable and safe for stationary storage systems.
• Safety setup: Integrated Smart BMS and breaker and fuse; plus aerosol fire suppression system.
• External fuse (easy to replace): The external fuse design allows for easy 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 ≥ 6,000 cycles (Test conditions: 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 high-power applications:

• Maximum autonomy: More energy in the home, less reliance on the grid – even in bad weather.
• Commercial & Multi-family Homes: High capacity and power reserve for demanding load profiles.
• Backup systems: High continuous power output for emergency/back-up power scenarios (please note system specifications).
• Scalable storage farms: 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 by pallet via a haulage contractor. Appropriate lifting and handling equipment must be arranged for unloading.
• 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 common. Please select the cross-section and fuse rating in accordance with standards, cable length and the manufacturer’s specifications.

FAQs on the Felicity FLA 48460TG2-EU

How long does it take to charge this battery?

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

Can I connect two of these in parallel?

Yes. The storage unit is designed for parallel connection. With two units, you can achieve approx. 47 kWh of capacity. In total, up to 15 units can be connected in parallel (up to 352.5 kWh).

How does the battery communicate with the inverter?

About CAN or RS485. Please check the compatibility and the required pin configuration/protocol selection in your inverter’s documentation.

Contents: Felicity Solar FLA 48460TG2-EU (23.5 kWh low-voltage battery storage system)

1 x Felicity Solar FLA 48460TG2-EU battery module

• A solid, freestanding 51.2V LiFePO4 energy storage unit with a high capacity of 460 Ah (23.55 kWh) and an integrated battery management system (BMS).

1 x set of DC power cables (power cables)

• A pair of high-current-rated cables (positive and negative) for connecting 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 a CAN or RS485 interface.

1 x earth cable

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

1 x wall mounting kit / anti-tilt device

• Special mounting accessories for securing the housing to a sturdy wall to prevent the heavy storage tank from tipping over.

1 x mounting kit (screws and accessories)

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

1 x User Manual

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