--- title: "FelicityESS LUX-E-48250LG03 11.88 kWh Battery: Specs & Datasheet | ComparePV" description: "FelicityESS LUX-E-48250LG03 11.88 kWh home battery. Specs: 6000 cycles, 92.0 kg, 10 yrs warranty." source: "https://comparepv.com/battery/felicityess-lux-e-48250lg03" updated: 2026-01-10 --- # FelicityESS LUX-E-48250LG03 ## Identity - **Manufacturer:** FelicityESS - **Model:** LUX-E-48250LG03 - **Series:** LUX-E Battery Pack - **Usable energy:** 11.88 kWh - **Voltage class:** Low voltage - **Cell technology:** LFP ## How it compares Compared against 44 batteries from 6 to 12 kWh. Ranks are within that class. | Measure | This battery | Class median | Standing | Rank in class | | --- | --- | --- | --- | --- | | Round-trip efficiency | - | 95.0% | | | | Power per kWh | - | 1.00 | | | | Cycle life | 6000 | 6000 | Typical | 5 | | Weight per kWh | 7.7 | 12.3 | Strong - top 4% | 2 | | Warranty | 10 yrs | 10 yrs | Typical | 3 | ## Specification ### Capacity - **Usable energy:** 11.88 kWh - **Nominal energy:** 12.50 kWh - **Depth of discharge:** 95 % - **Max system capacity:** 178.2 kWh - **Units in parallel:** 15 ### Power - **Max discharge current:** 150 A - **Max charge current:** 150 A - **Peak discharge current:** 200 A ### Efficiency and lifetime - **Cycle life:** 6000 cycles ### Cells and voltage - **Voltage class:** Low voltage - **Nominal voltage:** 51.2 V - **Operating voltage:** 45 to 58 V - **Cell technology:** LFP - **Cell management:** Cobalt-free ### Physical - **Dimensions:** 540 × 783 × 274 mm - **Weight:** 92.0 kg - **Enclosure:** IP21 - **Mounting:** wall - **Operating temperature:** -20 to 55 °C ### Compatibility - **Protocols:** RS485, CAN ### Warranty and certificates - **Warranty:** 10 years - **Certifications:** UN38.3 (icon shown), CE (icon shown) ### Pros - **6000 cycles at 80% DoD and DoD ≥ 95%** - The LUX-E (202408) datasheet declares ≥6000 cycles at 0.2C/25°C/80% DoD - comparable to the Pylontech US5000C (>6000 at 90% DoD). Furthermore, the available depth of discharge is ≥ 95%, meaning that approximately 4.86 kWh can be realistically drawn from a 5.12 kWh module - better than the typical 80-90% DoD of many competitors in the LV segment. - **Aerosol-based fire suppression within a casing** - The integrated aerosol fire suppression system within the module is a rare feature in the category of low-voltage residential batteries - FelicityESS published dedicated tests for the LUX-E-48200LG03, demonstrating the activation of the system in a simulated thermal event. Standard Pylontech US5000C and BYD Battery-Box LV modules do not have a similar passive fire suppression system. - **Dual CAN + RS485 communication** - Supporting both protocols simultaneously ensures broad compatibility with popular hybrid inverters (Growatt, Solis, GoodWe, Synsunk, Luxpower), eliminating the need to use protocol converters. This is a significant advantage when upgrading existing PV systems without replacing the inverter. - **Security measures implemented on the DC side of the module** - Each module is equipped with a DC disconnect switch and fuses on the battery side - a solution that reduces the design requirements for the installer and lowers the cost of wiring the control cabinet compared to modules that require external DC protection (e.g., some variants of the Pylontech Force H2). - **10-year product warranty** - The 10-year warranty, confirmed by European distributors (7sun.eu, Sunvault UK), meets the market standard required by most Polish renewable energy funding programs (Czyste Powietrze, Mój Prąd), which simplifies the eligibility of installations for subsidies. ### Cons - **Low brand recognition vs. Tier-1** - The FelicityESS brand was launched in 2022 and is not included in the BNEF Tier-1 ESS Storage 2025 rankings or the SolarPower Europe EU Battery Storage Market Review 2025 reports. Pylontech has over 1 million operational installations in over 80 countries, which translates to a more developed ecosystem of technical support, service availability, and familiarity among Polish installers - all of which are important for long-term operation. - **Inverter compatibility: No premium EU features** - The official list of compatible brands includes only Chinese mid-range inverters (Growatt, Solis, GoodWe, Synsunk, Luxpower). The lack of officially confirmed integration with SMA Sunny Island, Fronius Symo GEN24+, or Victron Energy Quattro - which dominate the premium segment in Central Europe - could pose a limitation for higher-end installations or for expanding an existing system with these inverters. ## About this series The FelicityESS LUX-E Battery Pack is a low-voltage wall-mounted energy storage system designed for stable operation in hybrid and off-grid installations. What sets it apart is its **LiFePO4 (LFP) chemistry**, which, compared to NMC, better withstands intensive use, is thermally more resistant, and typically offers a longer lifespan - a key advantage for the safety of home power plants, garages, or company backup systems. Each module features an **intelligent BMS** and DC-side protections (including a fuse and circuit breakers), ensuring constant control over charging and discharging while minimizing the risk of operation outside safe parameters. An additional feature is the **aerosol fire suppression** inside the housing, enhancing protection in emergency situations. The LUX-E offers **scalability through parallel module connection**, making it easy to expand capacity as PV self-consumption increases. Communication via CAN and RS485 facilitates **compatibility with inverters** and integration with energy management systems. The declared lifespan in thousands of cycles and the multi-year warranty ensure predictable costs and reliable operation for homes, businesses, and off-grid systems. ## Questions ### How many cycles can the FelicityESS LUX-E battery pack withstand, and what is the warranty? The LUX-E series boasts over 6000 charge and discharge cycles at a depth of discharge (DoD) of up to 80%. This translates to over 15 years of daily use with a single cycle per day. The manufacturer's warranty for the battery module is 10 years. This is a key advantage of LiFePO4 chemistry compared to cheaper NMC batteries, which typically have a lifespan of 3000-4000 cycles. ### Does the FelicityESS LUX-E system work with my hybrid inverter? The LUX-E series communicates via CAN and RS485 magistrales, ensuring compatibility with a wide range of popular hybrid inverters from leading brands (e.g., Growatt, Deye, SolaX, Luxpower). However, it's advisable to check the compatibility list for the specific inverter model before purchasing, as full BMS control requires support for these protocols on the inverter side. ### How many LUX-E modules can be connected in parallel to increase capacity? The LUX-E series is designed for scalability through parallel module connection. This means that you can start with a single module, such as a 5.12 kWh or 12.5 kWh unit, and then purchase additional modules as your energy consumption or solar panel installation grows. The maximum number of modules in a set should be confirmed in the documentation or by the distributor for the specific LG03/LG04 model. ### Why does LUX-E use an aerosol fire suppressant, and does this mean that standard batteries are dangerous? The aerosol fire suppression system within the enclosure provides an additional layer of safety in the event of extreme failures, independent of battery chemistry. LiFePO4 batteries are inherently more thermally resistant than NMC batteries and are significantly less prone to the phenomenon known as "thermal runaway." However, the integrated fire suppression system is a key feature of LUX-E, particularly important for installations in enclosed spaces such as boiler rooms, garages, or warehouses. ### What is the available capacity and voltage for the FelicityESS LUX-E series? The LUX-E series offers low-voltage modules with a nominal voltage of 51.2 V. The range includes models with capacities of 5.12 kWh (100 Ah, LG04 version), 10.24 kWh (200 Ah), 11.78 kWh (230 Ah), and 12.8 kWh (250 Ah) in LG03 versions. The smaller 5.12 kWh module is a good starting point for a small house, while the 12.5 kWh model is better suited for households with higher daily energy consumption. ### Can the FelicityESS LUX-E be installed in a garage or boiler room without specific permits? LUX-E energy storage systems are wall-mounted and have an IP21 protection rating, which means they are protected against vertically falling water droplets, but are not suitable for areas exposed to humidity or water. Installation in a garage or boiler room is technically possible, provided that adequate ventilation and operating temperature (0-55°C) are maintained. It is advisable to consult with a specialist or check local building regulations for ESS installations with a capacity above a certain level. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/batteries/lux-battery-c6be040b12e1.pdf) ## Alternatives | Battery | Usable energy | Round-trip | Power | Voltage | Difference | | --- | --- | --- | --- | --- | --- | | [FelicityESS LUX-E-48230LG03](https://comparepv.com/battery/felicityess-lux-e-48230lg03) | 11.21 kWh | | | LV | -0.7 kWh | | [Deye SE-F12](https://comparepv.com/battery/deye-se-f12) | 10.62 kWh | | 11.8 kW | LV | -1.3 kWh | | [Deye RW-L10.2](https://comparepv.com/battery/rw-l10-2) | 10.24 kWh | | 12.0 kW | LV | -1.6 kWh | | [Deye SE-G 10.2](https://comparepv.com/battery/se-g-10-2) | 10.24 kWh | | 5.0 kW | LV | -1.6 kWh | | [FelicityESS LUX-E-48200LG03](https://comparepv.com/battery/felicityess-lux-e-48200lg03) | 9.98 kWh | | | LV | -1.9 kWh | | [Deye AI-W5.1-B (3 modules)](https://comparepv.com/battery/deye-ai-w5-1-b-3-modules) | 13.8 kWh | | 12.8 kW | LV | +1.9 kWh | | [Deye RW-G10.6](https://comparepv.com/battery/deye-rw-g10-6) | 9.58 kWh | 90.0% | | LV | -2.3 kWh | | [Deye RW-F16](https://comparepv.com/battery/deye-rw-f16) | 14.4 kWh | 90.0% | 8.2 kW | LV | +2.5 kWh | --- Source: https://comparepv.com/battery/felicityess-lux-e-48250lg03