Felicity Solar FLA48350TG2 17.5kWh LiFePO4 Battery Pack

Felicity Solar FLA48350TG2 51.2V 17.5kWh LiFePO4 Battery

A floor-mounted 51.2V LiFePO4 cabinet, the FLA48350TG2 holds 350Ah and 17.5kWh of nominal energy, sustains 175A continuous and peaks at 300A for 15 seconds.

Nominal Energy: 17.5 kWh
Nominal Capacity: 350 Ah
Nominal Voltage: 51.2 V
Cycle Life: 8000

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Full Specifications Download datasheet (PDF)

Felicity Solar FLA48350TG2 51.2V 17.5kWh LiFePO4 Battery features

350Ah at 51.2V for 17.5kWh of nominal energy, with depth of discharge rated at 95% or better

Cycle life rated at 8000 cycles on LiFePO4 chemistry

175A continuous charge and discharge, 300A peak and 8750W for 15 seconds

Up to 15 units in parallel for a maximum system capacity of 262.5kWh

Built-in Smart BMS with breaker and fuse, CAN and RS485 communication, LCD with LED indicators

Floor-mounted cabinet of 880 x 247 x 435 mm at 121.5 kg, rated IP21, certified to UN38.3, warranty 5 Years

About the Felicity Solar FLA48350TG2 51.2V 17.5kWh LiFePO4 Battery

The Felicity Solar FLA48350TG2 is a 51.2V LiFePO4 battery rated 350Ah and 17.5kWh of nominal energy, with a cycle life of 8000 and a depth of discharge of at least 95%. It sustains 175A of continuous charge and discharge current, peaks at 300A, and delivers 8750W for 15 seconds. Up to 15 units run in parallel for a maximum system capacity of 262.5kWh. The operating window is 44.8-57.6V, with a 44.8V cut-off and a 57.6V maximum charging voltage. A Built-in Smart BMS with breaker and fuse handles protection, CAN and RS485 ports carry data to a compatible inverter, and an LCD with LED indicators reports state at the cabinet. Installation is floor-mounted: the unit measures 880 x 247 x 435 mm and weighs 121.5 kg, while its shipping package measures 960 x 450 x 555 mm at 143.5 kg. It charges from 0 to 55 °C, discharges from -20 to 55 °C, is rated IP21, is certified to UN38.3 and carries a warranty of 5 Years. We are an authorised Felicity Solar distributor and supply the FLA48350TG2 from our own stock.

Specifications last updated 17 August 2026

Felicity Solar FLA48350TG2 51.2V 17.5kWh LiFePO4 Battery full specifications

Electrical

Battery Type	LiFePO4
Cut-Off Voltage	44.8 V
Cycle Life	8000
Depth of Discharge	≥95 %
Max Charge/Discharge Power (15 s)	8750 W
Max Charging Voltage	57.6 V
Max Continuous Charge/Discharge Current	175 A
Max Parallel Units	15
Max System Capacity	262.5 kWh
Nominal Capacity	350 Ah
Nominal Energy	17.5 kWh
Nominal Voltage	51.2 V
Operating Voltage	44.8-57.6 V
Peak Charge/Discharge Current (15 s)	300 A
Protection	Built-in Smart BMS, Breaker, Fuse

Mechanical

Communication	CAN, RS485
Display Type	LCD, LED
Installation	Floor-Mounted
Package Dimensions	960 x 450 x 555 mm
Package Weight	143.5 kg

Environmental

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

Certifications

UN38.3

Frequently Asked Questions

17.5kWh is the nominal energy, from a 350Ah string at 51.2V. How much of it you can draw is governed by a separate row, depth of discharge, rated at 95% or better — the 17.5kWh figure itself is nominal, not usable.

175A of continuous charge and discharge current, with a 300A peak and 8750W for 15 seconds. Cut-off voltage is 44.8V, maximum charging voltage is 57.6V, and the operating window runs 44.8-57.6V.

15 units, giving a maximum system capacity of 262.5kWh. CAN and RS485 ports carry the data between the units and a compatible inverter.

8000 cycles is the rated cycle life and the warranty term is 5 Years. The cabinet is rated IP21, charges from 0 to 55 °C and discharges from -20 to 55 °C.