The FelicityESS FLB48100WG1-H lithium battery with heater is a compact, high-tech solution for energy storage systems based on safe lithium iron phosphate (LiFePO4) chemistry. This FLB series model delivers 5.12 kWh of energy at a nominal voltage of 51.2 V and is equipped with an intelligent BMS with a maximum continuous current of 100 A. Key features include integrated heater for operation at sub-zero temperatures, the highest IP65 protection rating for outdoor use, and a built-in active aerosol fire suppression system. This battery is designed for backup and stand-alone power systems in private homes, commercial facilities, and locations with harsh climates that require operation at low temperatures. It stores excess energy from solar power plants, ensures uninterruptible power supply to critical equipment, and ensures complete energy independence. With the ability to connect up to 32 modules in parallel, the system can be scaled to a total capacity of over 163 kWh, and the high IP65 protection rating allows for both indoor and outdoor installation. The product is ideal for professional installers, business owners, and anyone who demands maximum reliability, safety, and durability in any operating conditions. - Built-in active heating system (Heating) for safe charging and stable operation at negative ambient temperatures down to -20 ° C. - The highest degree of protection of the IP65 housing, providing complete tightness, protection from dust and jets of water for reliable outdoor installation. - Built-in active fire protection system with aerosol fire extinguishing for maximum safety. - LiFePO4 technology with a long service life (up to 6000 cycles) and stable operation throughout the entire service life. - Modular design with the possibility of parallel connection of up to 32 units for flexible increase of system capacity up to 163.84 kWh. - Built-in Wi-Fi / Bluetooth module for remote monitoring of battery status and operating parameters via the Fsolar mobile application. - Convenient design with an external easy-to-replace fuse for quick maintenance without disassembling the case. - Comprehensive protection system: built-in intelligent BMS, circuit breaker and fuse. - Flexible installation options: both wall and floor mounting possible installations. - High compatibility with leading inverter brands thanks to built-in CAN and RS485 interfaces. Specifications:• Manufacturer: FelicityESS (Felicitysolar)• Series: FLB• Model: FLB48100WG1-H (with heating function)• Battery type: lithium iron phosphate (LiFePO4)• Nominal voltage: 51.2 V• Nominal capacity: 100 Ah• Stored energy: 5.12 kWh• Operating voltage range: 44.8 – 57.6 V• Recommended charge / discharge current: 50 A• Maximum continuous charge / discharge current: 100 A (depending on temperature and SOC)• Peak charge / discharge current (15 seconds): 150 A• Recommended depth of discharge (DOD): ≥95%• Communication interfaces: CAN, RS485• Monitoring: built-in Wi-Fi / Bluetooth module• Security system: built-in aerosol fire extinguishing system, Automatic switch, easy-to-replace fuse• Heating function: built-in (Heating) for operation at low temperatures• Parallel connection: up to 32 modules (max. capacity 163.84 kWh)• Resource: ≥6000 cycles (at 25°C, 90% DOD)• Enclosure protection rating: IP65 (full dust and moisture protection for outdoor installation)• Installation method: wall / floor• Warranty: 10 years• Dimensions (H x W x D): 650 x 450 x 174 mm• Net weight: 48.5 kg• Gross weight: 53 kg• Charge temperature range: from -20°C to +55°C• Discharge temperature range: from -20°C to +55°C The FelicityESS FLB48100WG1-H lithium battery is a compact and fully autonomous storage solution Energy-efficient, ready to operate in the most extreme conditions. The combination of integrated heating, the highest IP65 protection rating, an active fire suppression system, and the ability to scale up to 32 modules makes it the ideal choice for mission-critical projects where reliability and safety are paramount.