Felicity Solar Lithium Batteries FLM500-125/261

A liquid-cooled 261.2 kWh LiFePO4 system, the FLM500-125/261 delivers 125 kW AC through a 3P4L connection and parallels 6 to 20 units for up to 5224 kWh.

Models Covered: FLM500-125/261

Manufacturer: Felicity Solar

Application: The Felicity Solar FLM500-125/261 is a liquid-cooled LiFePO4 energy storage system rated at 261.2 kWh nominal energy and 125 kW AC nominal power, connected through a 3P4L AC interface at 400 V nominal and 50/60 Hz. Its 1P260S configuration of LiFePO4 3.2V/314Ah cells gives 314 Ah at 832 V nominal. Operating voltage spans 728-936 V, between a 728 V cut-off and a 936 V maximum charging voltage, and the charge and discharge rate is 0.5P. Depth of discharge is specified at 95%, and cycle life is rated at ≥8000 cycles. Maximum system efficiency reaches ≥90%, total harmonic distortion stays under 3% and the DC component under 0.5%, while the power factor is adjustable from -1 to 1 and unbalanced load capacity is 100%. Six to twenty units run in parallel for 1567.2-5224 kWh. Liquid cooling, IP55 protection, a C4 anti-corrosion grade and an aerosol fire extinguishing system with water fire protection, smoke and heat detectors support -25 to 55 °C service at 0-95% humidity, below 2000 m and under 75 dB. The 2670 kg unit reports over RS485 and Ethernet. We are an authorised Felicity Solar distributor, and the FLM500-125/261 ships with a warranty of 5 Years.

Models and prices

Technical Specifications

Technical Specifications
ParameterFLM500-125/261
Performance & Electrical
AC Connection Type3P4L
AC Nominal Frequency50/60 Hz
AC Nominal Power125 kW
AC Nominal Voltage400 V
AC Voltage Range360-440 V
Battery TypeLiFePO4
Charge/Discharge Rate0.5P
Cut-Off Voltage728 V
Cycle Life≥8000
DC Component<0.5%
Depth of Discharge95%
Max Charging Voltage936 V
Max Parallel Units6-20
Max System Capacity1567.2-5224 kWh
Max System Efficiency≥90%
Nominal Capacity314 Ah
Nominal Energy261.2 kWh
Nominal Voltage832 V
Operating Voltage728-936 V
Power Factor Range-1 to 1
System Nominal Energy261.2 kWh
System Nominal Voltage832 V
System Operating Voltage728-936 V
Total Harmonic Distortion<3%
Unbalanced Load Capacity100%
Build & Interfaces
Cell TypeLiFePO4 3.2V/314Ah
CommunicationRS485, Ethernet
System Battery Configuration1P260S
Operating Environment
Anti-Corrosion GradeC4
Charging Temperature Range-25 to 55 °C
Discharging Temperature Range-25 to 55 °C
Fire Suppression SystemAerosol fire extinguishing equipment, Water fire protection, Smoke detector, Heat detector
Humidity Range0-95%
Noise Level<75 dB
Operating Altitude<2000 m
Protection DegreeIP55
Temperature Control MethodLiquid cooling

Figures are measured at the test conditions the manufacturer’s datasheet states. A dash means the manufacturer publishes no figure for that model.

Availability & grid compliance in the UAE

MarketUAE
Grid authority / regulatorDEWA, ADDC, SEWA
Quotation currencyAED
Support hours timezoneAsia/Dubai
Main citiesDubai, Abu Dhabi, Sharjah, Ajman, Ras Al Khaimah

Figures on this page are the manufacturer's own, measured at the test conditions the datasheet states — they do not change by country. What changes is the approval that has to be met before the unit is energised: in the UAE that rests with the local authorities (DEWA, ADDC, SEWA). Confirm the grid code, import requirements and any local certification with them, or with us, before you order.

For prices, see Felicity Solar Systems: Prices in UAE. Store pickup — collect your order from our store in Dubai or Riyadh.

Key Features & Technical Highlights

  • 261.2 kWh nominal energy from a 1P260S string of LiFePO4 3.2V/314Ah cells rated 314 Ah at 832 V
  • 125 kW AC nominal power on a 3P4L connection at 400 V nominal, 50/60 Hz, across a 360-440 V range
  • Cycle life rated at ≥8000 cycles, with depth of discharge specified at 95% and a 0.5P charge and discharge rate
  • Operating window of 728-936 V, with a 728 V cut-off voltage and a 936 V maximum charging voltage
  • Liquid cooling, IP55 protection and a C4 anti-corrosion grade for -25 to 55 °C service at 0-95% humidity
  • 6 to 20 units in parallel for 1567.2-5224 kWh of system capacity, supervised over RS485 and Ethernet

Frequently Asked Questions

How much energy does the FLM500-125/261 store?

261.2 kWh is the nominal energy of the FLM500-125/261, and the same 261.2 kWh is quoted as its system nominal energy. Depth of discharge is specified separately at 95%. Nominal capacity is 314 Ah at 832 V nominal.

What power output does the FLM500-125/261 deliver?

125 kW AC nominal power, delivered on a 3P4L connection at 400 V nominal and 50/60 Hz, over an AC voltage range of 360-440 V. Power factor is adjustable from -1 to 1, total harmonic distortion stays under 3% and unbalanced load capacity is 100%.

How many FLM500-125/261 units can run in parallel?

6 to 20 units run in parallel, for a maximum system capacity of 1567.2-5224 kWh. Each unit runs at 832 V nominal within a 728-936 V operating window, and maximum system efficiency is ≥90%.

How is the FLM500-125/261 protected, and what warranty does it carry?

IP55 protection with a C4 anti-corrosion grade, liquid cooling, and an aerosol fire extinguishing system with water fire protection plus smoke and heat detectors. The 2670 kg unit runs from -25 to 55 °C at 0-95% humidity, below 2000 m and under 75 dB, and ships with a warranty of 5 Years.