Felicity Solar FLH96050SG01 high-voltage storage unit 25.6 kWh

The Felicity Solar FLH96050SG01 with 25.6 kWh storage capacity is the most powerful single configuration in this high-voltage series and represents the pinnacle of home energy storage solutions. This system, consisting of a tower with five battery modules, offers massive energy reserves for large detached houses, blocks of flats or commercial applications. With a nominal voltage of 512 volts, it operates highly efficiently and is perfectly suited to powering energy-intensive appliances such as heat pumps or multiple electric vehicles simultaneously, even at night.

Highlights at a glance

• Enormous capacity: With a usable capacity of 25.6 kWh, you can achieve maximum independence from the mains supply and even bridge periods of bad weather.
• 5-stack design: The storage system consists of five 5.12 kWh modules stacked on top of one another, plus a control unit – compact in footprint, yet powerful in performance.
• Maximum high-voltage efficiency: The system voltage of 512 V ensures minimal conversion losses and high discharge power with low heat generation.
• Industrial safety standard: Fitted with LiFePO4 cells and an integrated aerosol fire-extinguishing system in each module for maximum fire protection.
• Pure sector coupling: Ideally sized for a combination of photovoltaics, a heat pump and e-mobility (wallbox).
• Proven communication: Compatible with high-performance high-voltage hybrid inverters (e.g. Deye, Solis, GoodWe, Megarevo).

A power station designed to meet the highest standards

This configuration is designed for users who do not want to compromise. 25.6 kWh means that you can use almost all of the solar power generated during the day yourself, even if your night-time consumption is very high. For small commercial premises (bakeries, offices with server rooms), this storage system also offers an effective means of peak shaving and serves as a powerful emergency power source in the event of a power cut.

Installation and handling

Despite a total weight of over 260 kg, installation remains feasible thanks to the modular design. The individual modules (weighing approx. 50 kg each) are stacked one on top of the other at the installation site to form a tower. The wireless plug-in connection between the modules eliminates the need for complex cabling, thereby minimising the risk of faults.
 

FAQs on the Felicity FLH96050SG01 (25.6 kWh)

Which inverter can handle this voltage?

With a nominal voltage of 512 V and a final charging voltage of up to 576 V, you will need an inverter that supports this high voltage range. The Deye SUN-10K/12K-SG01HP3 (battery input up to 700 V) is ideal for this. Some smaller HV inverters have a maximum rating of 500 V or 600 V – in these cases, you must check the datasheet carefully to avoid overvoltage faults.

How tall is the storage tower?

The tower, consisting of 5 modules plus the BMS head and base, reaches a height of approx. 1.50 m to 1.60 m. Ensure the surface is stable and level, as the weight is borne by a relatively small base area (approx. 60 x 40 cm).

Can I extend this configuration further?

From a technical perspective, the FLH96050SG01 series is often limited to 6 modules (approx. 30 kWh) per tower, as the voltage would otherwise be too high for most inverters. If you require even more storage capacity, you can instead install a complete second tower in parallel alongside it (master/slave operation), provided the inverter supports this.

Is the system suitable for commercial use?

Absolutely. Due to its high capacity, cycle stability and safety features (fire suppression system), this storage unit is often used in commercial projects to increase self-sufficiency or to safeguard sensitive loads.

 

Contents: Felicity Solar FLH96050SG01 (25.6 kWh high-voltage battery storage set)

1 x Felicity FLH96050SCG01 BMS control unit

• The central high-voltage management module, which monitors the cells and communicates with the inverter.

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

• Five stackable high-voltage LiFePO4 storage units which, when connected in series, provide a total capacity of 25.6 kWh.

1 x base plate (Base)

• A sturdy base for floor mounting, onto which the five battery modules and the control unit are securely stacked.

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

• Short connectors for electrical coupling and data transmission between the five battery 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 (CAN/RS485).

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 instructions on stacking, BMS configuration and important safety instructions for high-voltage systems.