Felicity Solar FLA48250 11.8kWh LiFePO4 Battery Pack

Felicity Solar FLA48250 51.2V 12.5kWh LiFePO4 Battery

The FLA48250 puts 250 Ah and 12.5 kWh on a 51.2 V bus, running 150 A continuous, which is also its recommended current, and scaling to 187 kWh.

Nominal Energy: 12.5 kWh
Nominal Capacity: 250 Ah
Nominal Voltage: 51.2 V
Cycle Life: ≥6000

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Full Specifications Download datasheet (PDF)

Felicity Solar FLA48250 51.2V 12.5kWh LiFePO4 Battery features

250 Ah and 12.5 kWh of nominal energy on a 51.2 V nominal bus

150 A of continuous charge and discharge current, matching 7,500 W of recommended power

200 A and 10,000 W as a separate 15-second short-burst ceiling

Up to 15 units in parallel for a 187 kWh maximum system capacity

Depth of discharge ≥95%, carried apart from the 6,000-cycle rating

97 kg installed against 115 kg packed in a 900 x 450 x 570 mm carton, IP21

About the Felicity Solar FLA48250 51.2V 12.5kWh LiFePO4 Battery

The Felicity Solar FLA48250 is a 51.2 V LiFePO4 battery rated 250 Ah and 12.5 kWh of nominal energy, running 150 A of continuous charge and discharge current, which is also its recommended figure and worth 7,500 W, and paralleling to 15 units for a 187 kWh maximum system capacity. Warranty is 5 Years. The 12.5 kWh is a nominal rating, not the energy delivered per cycle; what comes out follows the depth-of-discharge row, which the record carries separately at ≥95%, alongside a life of 6,000 cycles. Short bursts are rated apart at 200 A and 10,000 W over 15 seconds. The pack works from 44.8 V to 57.6 V, cutting off at 44.8 V. A built-in Smart BMS, a breaker and a fuse cover protection, CAN and RS485 report to a compatible inverter, and an LCD with LED indicators reports at the unit. It weighs 97 kg, takes a wall or a floor, is rated IP21, and charges from 0 to 55 °C. Packed it is 115 kg in a 900 x 450 x 570 mm carton. We are an authorised Felicity Solar distributor and supply the FLA48250 from our own stock.

Specifications last updated 17 August 2026

Felicity Solar FLA48250 51.2V 12.5kWh LiFePO4 Battery full specifications

Electrical

Battery Type	LiFePO4
Cut-Off Voltage	44.8 V
Cycle Life	≥6000
Depth of Discharge	≥95 %
Max Charge/Discharge Power (15 s)	10000 W
Max Charging Voltage	57.6 V
Max Continuous Charge/Discharge Current	150 A
Max Parallel Units	15
Max System Capacity	187 kWh
Nominal Capacity	250 Ah
Nominal Energy	12.5 kWh
Nominal Voltage	51.2 V
Operating Voltage	44.8-57.6 V
Peak Charge/Discharge Current (15 s)	200 A
Protection	Built-in Smart BMS, Breaker, Fuse
Recommended Charge/Discharge Current	150 A
Recommended Charge/Discharge Power	7500 W

Mechanical

Communication	CAN, RS485
Display Type	LCD, LED
Installation	Wall-Mounted, Floor-Mounted
Package Dimensions	900 x 450 x 570 mm
Package Weight	115 kg

Environmental

Charging Temperature Range	0-55 °C
Discharging Temperature Range	-20 to 55 °C
Protection Degree	IP21

Certifications

UN38.3
CE-EMC
IEC 62619

Frequently Asked Questions

12.5 kWh of nominal energy, from 250 Ah at 51.2 V nominal. Depth of discharge is rated separately at ≥95%, so the two rows are read side by side rather than as one usable figure.

187 kWh, reached by paralleling up to 15 units on one 51.2 V bus.

150 A of continuous charge and discharge, which is the recommended figure too and equals 7,500 W; a separate 15-second rating allows 200 A and 10,000 W.

97 kg for the unit and 115 kg once packed into its 900 x 450 x 570 mm carton, with a 5 Years warranty.