Felicity FLS battery module – 5.12 kWh low-voltage storage for modular energy systems

The Felicity FLS48100SMG2 battery module from the renowned FLS series is a high-performance, stackable low-voltage lithium iron phosphate (LiFePO4) battery with a capacity of 5.12 kWh. Thanks to its intelligent, space-saving design and modular expandability, the system is ideally suited for use in private households, commercial premises and emergency power systems.

Highlights at a glance

• Reliable capacity: 5.12 kWh per module for effective energy storage
• High scalability: Up to 8 modules can be operated in parallel (40.96 kWh)
• Flexible installation: Wall- or floor-mountable, stackable design
• Smart security: Integrated BMS, fuse and circuit breaker
• Durable: ≥ 6,000 charge cycles at 90% depth of discharge (DoD)

Efficient energy storage for domestic and commercial applications

With a nominal voltage of 51.2 V and a capacity of 100 Ah, the Felicity battery module is suitable for a wide range of applications, from detached houses to industrial emergency power supplies. Its high efficiency and modular expandability make the system particularly cost-effective.

Flexibility and easy expansion

The clever, stackable design allows for rapid expansion to up to 8 modules with a total capacity of up to 40.96 kWh. Thanks to the plug-and-play principle and ease of use, integration into existing systems is particularly straightforward.

Safety and reliability

The Felicity FLS series uses high-quality LiFePO4 cells, which are renowned for their high thermal stability and long service life. The integrated battery management system (BMS) provides reliable protection against overcharging, deep discharge, short circuits and overheating.

Who is the Felicity battery module suitable for?

This battery pack is ideal for:

• Homeowners who wish to increase their self-consumption rate
   
• Commercial enterprises that wish to absorb peak loads or operate independently
   
• PV installers who require flexible and scalable storage solutions
   
• Industrial users who rely on robust emergency power solutions

FAQs on the Felicity battery storage system

Which inverters is the Felicity 5.12 kWh low-voltage module compatible with?

The module is compatible with many 48 V inverters, including models from Deye, Growatt, Victron, Solis, Sofar, MPP Solar and Felicity itself. It is not compatible with high-voltage inverters such as the Huawei SUN2000 or Kostal Plenticore Plus.

Can I increase the storage capacity by adding extra modules?

Yes, the Felicity module has a modular design. Depending on the model, up to 8 or even 15 modules can be combined, enabling a total capacity of up to 40.96 kWh.

What safety functions does the module offer?

The module features an integrated battery management system (BMS) that continuously monitors voltage and temperature. It also offers 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 the installation carried out?

Yes, the module is maintenance-free. It is designed for wall mounting and weighs between 51 and 92 kg, depending on the version. Installation can be carried out by one person.

Is there a way to monitor the battery status?

Yes, the module offers integrated WiFi monitoring, which enables real-time monitoring of charge status, temperature and other parameters.

Contents of the Felicity FLS48100SMG2 battery module (5.12 kWh slave unit):

Module type

• This is purely an extension module (slave unit) for an existing Felicity tower system. It requires a master module (control module) to operate.

1 x Felicity FLS48100SMG2 slave battery module (5.12 kWh)

• A pure expansion battery module with 5.12 kWh (100 Ah) without its own higher-level control unit.

1 x connecting bridge / parallel connection cable

• Short, robust cables or a fixed bridge to connect this module to an existing master or slave module.

1 x earth cable

• A short protective conductor cable for connection to the earth point of the neighbouring module.

1 x mounting accessories (rack/tower mounting)

• Usually includes screws or clamps to stack the module securely on top of another.

1 x operating and installation manual

• A printed manual describing the expansion of an existing tower system.