FLYFINE · FS48314 / FS48628

51.2V Floor-Standing LiFePO4 Battery

The FLYFINE floor-standing LiFePO4 battery series offers 314Ah and 628Ah capacity options for compatible residential solar storage and backup power systems. Both models operate at a nominal voltage of 51.2V.

The FS48314 provides 16.077kWh of rated energy, while the FS48628 provides 32.15kWh. Grade A+ lithium iron phosphate cells, BMS and circuit breaker protection, and CAN/RS485 communication support integration into compatible energy storage installations.

FS48314 · 314Ah 16.077kWh 51.2V nominal voltage
FS48628 · 628Ah 32.15kWh 51.2V nominal voltage

Key Features

Two Energy Capacity Options

Select 16.077kWh or 32.15kWh of rated energy according to the project's storage needs. Both models use a 51.2V nominal battery architecture.

Grade A+ Cells and Battery Protection

New Grade A+ LiFePO4 cells are paired with a battery management system and circuit breaker, providing two levels of overcurrent protection.

Communication and Optional Monitoring

CAN and RS485 interfaces support compatible inverter communication. Bluetooth and Wi-Fi monitoring are available as optional functions.

Specified Cycle Performance

Both models are specified for at least 8,000 cycles at 25 ± 2°C and 0.5C charge/discharge rates, with an 80% end-of-life capacity threshold. Actual service life depends on operating conditions.

Technical Specifications

FLYFINE FS48314 and FS48628 Battery Comparison
Parameter FS48314 FS48628
Battery Chemistry LiFePO4 LiFePO4
Installation Floor-standing Floor-standing
Nominal Voltage 51.2V 51.2V
Battery Voltage Range 43.2–57.6V 43.2–57.6V
Nominal Capacity 314Ah 628Ah
Rated Energy 16.077kWh 32.15kWh
Standard Charge/Discharge Current 100A 100A
Maximum Charge/Discharge Current 200A 200A
Communication Interfaces CAN / RS485 CAN / RS485
Optional Connectivity Bluetooth / Wi-Fi Bluetooth / Wi-Fi
Self-Discharge ≤3% per month ≤3% per month
IP Rating IP21 IP21
Cooling Natural cooling Natural cooling
Cycle Life* ≥8,000 cycles ≥8,000 cycles
Charging Temperature 0°C to 55°C 0°C to 55°C
Discharging Temperature −20°C to 55°C −20°C to 55°C
Operating Altitude 0–4,000m 0–4,000m
Altitude Derating Above 2,000m Above 2,000m

*Cycle-life test conditions: 25 ± 2°C, 0.5C charge / 0.5C discharge, with an 80% end-of-life capacity threshold. Specifications are subject to change. Confirm the final product configuration and optional functions when ordering.

Choosing Your Battery Capacity

FS48314 · 314Ah

Provides 16.077kWh of rated energy. Select this model when its usable energy and electrical limits meet your daily storage or backup requirements.

FS48628 · 628Ah

Provides approximately twice the rated energy of the FS48314. It supports projects requiring more stored energy, while retaining the same specified 200A maximum charge/discharge current.

Higher energy capacity does not automatically mean higher output power. Check battery current limits, inverter ratings and load demand when sizing the system.

Applications

Residential Solar Energy Storage

Store solar energy through compatible inverter and charging equipment for later use. System settings determine charging and discharging behavior.

Backup Power for Selected Loads

Pair the battery with a compatible backup-capable inverter to supply selected loads during an outage. Backup duration depends on usable battery energy, load demand and conversion efficiency.

Compatibility and Installation

  • Confirm inverter compatibility: Check the supported battery voltage range, charging settings, CAN/RS485 protocol and wiring requirements.
  • Check current and power requirements: Both models have a standard charge/discharge current of 100A and a maximum of 200A. Match the inverter, cables and protection equipment to the selected configuration.
  • Use a protected indoor location: Both batteries have an IP21 rating. Keep them away from rain, water sources and excessive heat.
  • Confirm the enclosure configuration: Specify your preferred enclosure when ordering the 314Ah model, including the standard or covered version.
  • Confirm battery expansion arrangements: Obtain approval for the exact battery combination, quantity, wiring and communication settings before connecting multiple units.

Frequently Asked Questions

Are these batteries suitable for 48V systems?

These are 51.2V nominal batteries for compatible 48V-class systems. Their specified battery voltage range is 43.2–57.6V. Confirm that your inverter supports this range and the required communication protocol.

What is the difference between 314Ah and 628Ah?

FS48314 provides 314Ah capacity and 16.077kWh rated energy. FS48628 provides 628Ah and 32.15kWh. Both models have a standard charge/discharge current of 100A and a maximum of 200A.

Does the 628Ah model provide twice the output power?

No. It provides approximately twice the rated energy, while both models have the same specified maximum charge/discharge current. Available system power also depends on battery voltage and inverter limits.

Which 314Ah enclosure options are available?

The 314Ah battery is offered in standard and covered enclosure versions. Specify the required version and confirm the final configuration with FLYFINE.

Can the batteries be installed outdoors?

Both models have an IP21 rating and should be installed in a suitable protected indoor location. They should not be exposed directly to rain or outdoor weather.

Are Bluetooth and Wi-Fi included?

Bluetooth and Wi-Fi are optional functions. Confirm your required monitoring configuration when requesting a quotation.

Request a Floor-Standing Battery Quote

For distribution or installation projects, send FLYFINE your preferred model (FS48314 or FS48628), required quantity, destination market, inverter model and monitoring requirements. For the 314Ah model, please also specify the preferred enclosure version. Our team can confirm the configuration and provide a quotation.