FLYFINE SOLAR INVERTERS

48V Off-Grid Hybrid Inverter

Available in 8.5kW and 11kW models, the FLYFINE FH-8500 and FH-11000 combine DC-to-AC power conversion, MPPT solar charging and utility charging in one unit. Pure sine wave output supports solar power and backup applications built around a 48V battery system.

Both models feature a 60–450V DC MPPT operating range, RS485 lithium battery communication and an LCD display. Lithium batteries can be activated through PV or utility power, and independent operation without a battery is supported.

Choose Your Power Rating

FH-8500

8.5kW

Rated capacity: 8.5kVA / 8.5kW
Maximum PV input: 10kW
PV array power: 5,000W × 2
Maximum charging current: 140A

FH-11000

11kW

Rated capacity: 11kVA / 11kW
Maximum PV input: 11kW
PV array power: 5,500W × 2
Maximum charging current: 160A

Key Features

Pure Sine Wave Output

Provides 220/230/240V AC nominal output at 50/60Hz, with a listed peak efficiency of 94%.

Integrated MPPT Charging

Supports a 60–450V DC MPPT range and a maximum PV open-circuit voltage of 500V DC.

Lithium Battery Communication

RS485 communication supports integration with compatible lithium battery systems. Battery activation is available through solar or utility power.

LCD Monitoring

An integrated LCD provides access to operating information. Transfer time is listed as 10ms in PC mode and 20ms in Home mode.

Model Specifications

Parameter FH-8500 FH-11000
Rated Capacity 8.5kVA / 8.5kW 11kVA / 11kW
Maximum PV Input Power 10kW 11kW
PV Array Power 5,000W × 2 5,500W × 2
Surge Power 17,000VA 22,000VA
Maximum Battery Discharge Current 180A 220A
Maximum Solar Charge Current 140A 160A
Maximum AC Charge Current 120A 120A
Maximum Charging Current 140A 160A
Net Weight 14kg 15kg

Common Electrical Specifications

Battery Voltage 48V DC
Nominal AC Input Voltage 230V AC
AC Input Voltage Range 170–280V AC (PC); 110–280V AC (Home)
AC Input Frequency 50/60Hz, adaptive
Nominal AC Output Voltage 220/230/240V AC
Output Frequency 50/60Hz
Output Waveform Pure sine wave
Transfer Time 10ms (PC); 20ms (Home)
Peak Efficiency 94%
Solar Charger Type MPPT
MPPT Voltage Range 60–450V DC
Maximum PV Open-Circuit Voltage 500V DC
Maximum Solar Input Current 18A × 2
Floating Charge Voltage 54V DC
Overcharge Protection 63V DC
Charging Method CC/CV
Lithium Battery Activation Supported through PV or utility power
Communication Interfaces RS485 / dry contact
Display LCD
Parallel Operation Not supported
Dimensions 540 × 415 × 122mm
Operating Temperature −10°C to +50°C
Storage Temperature −15°C to +50°C
Relative Humidity 5–95%, non-condensing

Specifications are based on the FLYFINE FH-8500 / FH-11000 datasheet. Product images are for reference. Confirm the configuration and specifications for your order with FLYFINE.

Applications

  • Residential solar power systems using a 48V battery bank.
  • Solar and utility backup systems for homes and small businesses.
  • Off-grid installations with compatible PV arrays and lithium batteries.

Select the model according to continuous load, starting demand, PV string configuration and battery discharge capability. Confirm battery communication compatibility before ordering.

Frequently Asked Questions

What is the difference between the two models?

The FH-8500 provides 8.5kW rated output and accepts up to 10kW of PV input. The FH-11000 provides 11kW rated output and accepts up to 11kW of PV input. Their maximum charging currents are 140A and 160A respectively.

What battery voltage do these inverters use?

Both models use a nominal 48V DC battery system and support RS485 lithium battery communication. Confirm the battery operating voltage, current ratings and communication protocol with FLYFINE when selecting a battery.

Can the inverter operate without a battery?

The product brochure lists independent operation without a battery. Confirm the required PV supply and load conditions for your installation with FLYFINE.

Can multiple units operate in parallel?

No. Parallel operation is not supported for the FH-8500 and FH-11000 models listed in this datasheet.

Where can I find the full technical specifications?

Open the FH-8500 / FH-11000 datasheet for the original technical specification table.