Felicity Solar FLA48500 25kWh LiFePO4 Battery Pack

Felicity Solar FLA48500 51.2V 25kWh LiFePO4 Battery

A 500Ah LiFePO4 pack rated at 25kWh, the FLA48500 works best at a recommended 200A and 10000W, tops out at 250A continuous and peaks at 300A or 15000W.

  • Nominal Energy: 25 kWh
  • Nominal Capacity: 500 Ah
  • Nominal Voltage: 51.2 V
  • Cycle Life: >6000
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Full SpecificationsDownload datasheet (PDF)

Felicity Solar FLA48500 51.2V 25kWh LiFePO4 Battery features

500Ah of nominal capacity for 25kWh of nominal energy at 51.2V

Recommended working point of 200A and 10000W, below the 250A maximum continuous current

300A peak for 15 seconds, rated at 15000W

Discharging temperature range of -20 to 60 °C and charging range of 0-55 °C

Cut-off voltage 44.8V and maximum charging voltage 57.6V, with a maximum system capacity of 375kWh from 15 parallel units

218 kg product weight against a 248 kg packed weight in a carton of 825 x 498 x 1162mm

About the Felicity Solar FLA48500 51.2V 25kWh LiFePO4 Battery

The Felicity Solar FLA48500 is a floor-mounted LiFePO4 battery of 500Ah and 25kWh nominal energy on a 51.2V bus. It publishes a recommended working point as well as a limit: 200A and 10000W recommended, against a maximum continuous 250A, and a 15-second peak of 300A rated at 15000W. Depth of discharge is a separate rating at ≥95%, and cycle life is quoted above 6000 cycles. Charging runs 0-55 °C and discharging -20 to 60 °C. Cut-off voltage is 44.8V and maximum charging voltage 57.6V, inside a 44.8-57.6V operating range. Fifteen units give a maximum system capacity of 375kWh. Protection is a built-in smart BMS with breaker and fuse, rated IP21, with CAN and RS485 and an LCD and LED display. The unit weighs 218 kg; packed it weighs 248 kg in a carton of 825 x 498 x 1162mm. Warranty is 5 Years. We are an authorised Felicity Solar distributor and supply the FLA48500 from our own stock.

Specifications last updated 17 August 2026

Felicity Solar FLA48500 51.2V 25kWh LiFePO4 Battery full specifications

Electrical

Battery TypeLiFePO4
Cut-Off Voltage44.8 V
Cycle Life>6000
Depth of Discharge≥95 %
Max Charge/Discharge Power (15 s)15000 W
Max Charging Voltage57.6 V
Max Continuous Charge/Discharge Current250 A
Max Parallel Units15
Max System Capacity375 kWh
Nominal Capacity500 Ah
Nominal Energy25 kWh
Nominal Voltage51.2 V
Operating Voltage44.8-57.6 V
Peak Charge/Discharge Current (15 s)300 A
ProtectionBuilt-in Smart BMS, Breaker, Fuse
Recommended Charge/Discharge Current200 A
Recommended Charge/Discharge Power10000 W

Mechanical

CommunicationCAN, RS485
Display TypeLCD, LED
InstallationFloor-Mounted
Package Dimensions825 x 498 x 1162 mm
Package Weight248 kg

Environmental

Charging Temperature Range0-55 °C
Discharging Temperature Range-20 to 60 °C
Protection DegreeIP21

Certifications

  • UN38.3
  • CE-EMC
  • IEC 62619

Troubleshooting & error codes

Looking up an error code on this FelicityESS FLA48500? Browse the full list of codes for this device, with the cause and recommended fix for each.

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