

High voltage BMS control module Felicity FLH48100UCG2 up to 81.92kWh per cluster
FLH48100UCG2 is the control module with BMS of Felicity's rack-mounted FLH series high voltage storage system. It manages 5 to 16 FLH48100UMG2 battery modules of 5.12kWh each, for clusters from 25.6 to 81.92kWh and a system voltage up to 921.6V; connecting up to 16 clusters in parallel takes the system beyond 1.3 MWh.
The smart BMS is configured and monitored over RS485, Wi-Fi, Bluetooth and USB and is compatible with high voltage inverters from the leading brands, including Felicity three-phase hybrids up to 125kW. Module-level balancing allows mixing new and already-in-service packs; protections include breaker and fuse, an aerosol extinguisher on every module, operating temperature from -20 to 55 °C, rack mounting with integrated grounding and a 10-year warranty.
Key features
Technical specifications
| Feature | Value |
|---|---|
| Product code | FLH48100UCG2 |
| Model | FLH48100UCG2 |
| Role in the system | Control module (BMS) for FLH48100UMG2 high voltage batteries |
| Managed modules | 5 to 16 FLH48100UMG2 modules per cluster |
| System energy | 25.6-81.92kWh per cluster |
| System voltage | Up to 921.6V (51.2V nominal modules) |
| Clusters in parallel | Up to 16 (over 1.3 MWh) |
| Depth of discharge (DOD) | 90% |
| System cycle life | ≥6,000 cycles |
| Communication | RS485, Wi-Fi, Bluetooth and USB |
| Balancing | Module level, supports packs of different ages in the same cluster |
| Inverter compatibility | Leading high voltage inverter brands, including Felicity hybrids up to 125kW |
| Ingress protection | IP20 |
| Operating temperature | -20 °C to 55 °C |
| Protections | Smart BMS, breaker, fuse and an aerosol extinguisher per module |
| Installation | Rack mounted with integrated grounding, no extra ground wires |
| Warranty | 10 years |
Documentation
PDFScheda tecnica sistema 50kW con FLH48100UG2 (EN)Official manufacturer documentInstallation and wiring must be carried out by qualified personnel in accordance with the applicable standards and the electrical design of the system.
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