Felicity 15kWh 51.2V Lithium Battery FLA48300TG2; LiFePO₄, 300Ah, 95% DoD, 6000 Cycles, Smart BMS, WiFi/BT, 15-Unit Parallel

Felicity 15kWh 51.2V Lithium Battery FLA48300TG2

Felicity 15kWh 51.2V Lithium Battery FLA48300TG2

The Felicity FLA48300TG2 15kWh 51.2V Lithium Battery is a high-capacity LiFePO₄ battery storage solution for homes, offices, shops, clinics and business backup systems that need longer runtime and reliable solar energy storage.

With 15kWh nominal energy, 51.2V nominal voltage, ≥95% depth of discharge and ≥6000 cycles, it provides strong usable capacity for compatible 48V hybrid and off-grid inverter systems. It is built with a smart BMS, breaker and fuse protection, plus an aerosol fire extinguishing system for improved safety.

The FLA48300TG2 also supports RS485/CAN communication, built-in WiFi/Bluetooth monitoring, and parallel expansion up to 15 units, making it suitable for both single-battery backup systems and larger expandable storage installations.

Best For

The Felicity FLA48300TG2 is best for homes, offices, shops, clinics, small businesses and larger solar backup systems that need long backup time from a high-capacity lithium battery. It is suitable for essential and moderate loads such as lights, TVs, fridges, routers, CCTV, computers, office equipment and other appliances when connected to a properly sized inverter system.

Battery Overview

• Brand: Felicity Solar
• Model: FLA48300TG2
• Product type: Lithium solar storage battery
• Nominal voltage: 51.2V
• Nominal energy: 15kWh
• Capacity class: 300Ah
• Battery chemistry: LiFePO₄ / Lithium Iron Phosphate
• Operating voltage: 44.8V - 57.6V
• Depth of discharge: ≥95%
• Cycle life: ≥6000 cycles
• Installation type: Floor-mounted / movable type
• Scalability: Up to 15 units in parallel
• Maximum scalable capacity: Up to 225kWh

Charge & Discharge

• Maximum continuous charge/discharge current: 160A
• Maximum charge/discharge power: 8000W
• Charge/discharge performance depends on temperature and battery state of charge
• External battery fuse design: Yes, for easier replacement

Communication, Monitoring & Safety

• Built-in smart BMS: Yes
• Communication: RS485 / CAN
• WiFi monitoring: Built-in
• Bluetooth monitoring: Built-in
• Protection: Smart BMS, breaker and fuse
• Fire safety: Built-in aerosol fire extinguishing system
• Display type: LCD + LED
• Protection level: IP21

Operating Conditions

• Charging temperature range: 0°C to 55°C
• Discharging temperature range: -20°C to 55°C
• Warranty period: 7 years

Dimensions & Weight

• Product dimensions: 435 × 880 × 247mm
• Package dimensions: 960 × 555 × 450mm
• Product weight: 118.5kg
• Package weight: 140.5kg

The Felicity FLA48300TG2 is designed for 48V-class inverter systems that support 51.2V LiFePO₄ batteries. It supports RS485/CAN communication, but inverter communication compatibility should be confirmed with the specific inverter brand and model before installation.

Felicity states that the battery is compatible with leading inverter brands. Where direct BMS communication is not available, some inverter systems may still allow user-defined lithium battery settings, depending on the inverter.

• This is a battery only. It does not include an inverter or solar panels.
• Confirm that your inverter supports 51.2V / 48V-class lithium batteries.
• For lithium communication, confirm RS485/CAN compatibility with your inverter brand and model.
• The battery weighs 118.5kg, so delivery, positioning and installation space should be planned properly.
• Battery backup time depends on your connected appliances and total power consumption.
• For larger systems, it can be expanded up to 15 units in parallel with compatible installation design.
• The IP21 rating means it should be installed indoors or in a protected equipment room.
• Use a qualified solar technician for installation, inverter configuration, battery protection and system testing.