Felicity Solar FLH96050SG01 high-voltage storage system 20.48 kWh

The Felicity Solar FLH96050SG01 in its maximum configuration with 20.48 kWh is the ultimate power station for high-demand private homes, blocks of flats and small commercial premises. This system, consisting of four stacked battery modules, offers an enormous energy reserve, enabling maximum independence from the public electricity grid. It is specifically designed to efficiently meet the high energy demands of electric vehicles and heat pump heating systems, and to bridge even prolonged periods without sunlight.

Highlights at a glance

• Maximum storage capacity: With a capacity of 20.48 kWh, this system offers one of the highest capacities in the home energy storage segment, making it ideal for maximum self-sufficiency and emergency power supply.
• Modular design (4-stack): The system consists of four battery modules, each with a capacity of 5.12 kWh, and a BMS control unit, which can be stacked on top of one another wirelessly (“Plug & Play”).
• Integrated safety: Each module is equipped with an advanced aerosol fire-extinguishing system that reacts immediately in an emergency – an industry-standard safety feature.
• High-voltage efficiency: The high system voltage reduces line losses to a minimum and ensures optimum efficiency, particularly when operating high-power loads.
• Durable & Robust: Uses modern LiFePO4 cells for a service life of over 6,000 cycles and an IP65-certified housing for flexible installation locations.
• Smart communication: Compatible with market-leading hybrid inverters (Deye, Solis, Growatt, GoodWe, etc.) via CAN/RS485 interfaces.

The power station for the energy transition in your home

With a storage capacity of over 20 kWh, this system is ideally suited for sector coupling. It stores enough solar power to charge an electric car significantly even after sunset or to run a heat pump through cold winter nights without having to draw on expensive grid electricity. For commercial premises, it effectively helps with ‘peak shaving’ to reduce grid charges.

Easy installation despite high performance

Despite the impressive performance figures, installation remains manageable. Thanks to the modular design, there is no need to move 200 kg in one go. The individual modules are placed one after the other at the installation site and lock together automatically. This saves time and reduces installation costs.


FAQs on the Felicity FLH96050SG01 (20.48 kWh)

Do I need a special inverter for this size?

You will need a High-voltage hybrid inverter, which can manage the corresponding voltage level and capacity. Most 3-phase hybrid inverters (e.g. Deye 10kW/12kW, Growatt SPH series) are perfectly suited to this battery size. Please ensure you check the inverter’s permissible voltage range (Input Voltage Range).

How big is the storage tower?

As four modules plus the BMS unit (base/head) are stacked on top of one another here, the tower reaches a considerable height. Ensure that there is sufficient headroom at the installation site (e.g. basement, garage) and that the floor can support a weight of over 200 kg (a solid floor is recommended).

Can I connect two of these towers in parallel?

Yes, where energy requirements are very high (e.g. multi-generational homes or commercial premises), several of these towers can be operated in parallel with one or more inverters to achieve capacities of 40 kWh or more. However, this requires precise coordination with the inverter.

Why LiFePO4 and not Li-ion (NMC)?

LiFePO4 (lithium iron phosphate) is regarded as the safest cell chemistry on the market. It is thermally stable (no ‘thermal runaway’ in the event of normal faults), cobalt-free (more environmentally friendly) and offers significantly higher cycle stability than conventional Li-ion batteries, which is crucial for cost-effectiveness in an investment of this scale.

 

Contents: Felicity Solar FLH96050SG01 (20.48 kWh HV battery storage set)

1 x Felicity FLH96050SCG01 BMS control unit

• The central high-voltage management module, which is mounted at the top of the stack and controls communication with the inverter.

4 x Felicity FLH48100-S battery modules (5.12 kWh each)

• Four stackable high-voltage LiFePO4 storage units which, when combined, provide a total capacity of 20.48 kWh.

1 x base plate (Base)

• A solid foundation for floor mounting, which serves as a stable base for the entire battery tower.

1 x set of internal connection cables (Plug & Play)

• Short DC jumpers and communication cables for the electrical interconnection of the four modules within the tower.

1 x External high-voltage cable set (DC)

• A pair of specialised power cables for the safe connection of the battery tower to the high-voltage hybrid inverter.

1 x communication cable (BMS to inverter)

• A pre-assembled data cable for connecting the control unit to the inverter via a CAN or RS485 interface.

1 x mounting kit (anti-tilt device & screws)

• All mounting hardware required for wall-mounting the tower, as well as screws for the mechanical module connections.

1 x User Manual

• A technical manual containing detailed instructions on stacking, BMS configuration and important safety instructions.