Felicity Solar FLA12300 3.75kWh LiFePO4 Battery Pack

Solar Battery and Lithium Battery StorageModel FLA12300

Felicity Solar FLA12300 12.8V 3.75kWh LiFePO4 Battery

A floor-mounted 12.8 V lithium block: the FLA12300 packs 300 Ah — 3.75 kWh — into a 379 x 286 x 241 mm case weighing 26 kg, with CAN and RS485 for the inverter handshake.

  • Nominal Energy: 3.75 kWh
  • Nominal Capacity: 300 Ah
  • Nominal Voltage: 12.8 V
  • Cycle Life: >6000

Models in the FLA12100 – FLA12300 family

What sets the FLA12300 apart from the other 2 models in the family: Cut-Off Voltage 12 V; Max Charge/Discharge Power (15 s) 2500 W; Max System Capacity 60 kWh; Nominal Capacity 300 Ah; Nominal Energy 3.75 kWh; Peak Charge/Discharge Current (15 s) 200 A; Recommended Charge/Discharge Power 1875 W; Package Dimensions 443 x 344 x 305 mm.

AED 1incl. VAT

In stock

  • Delivered within 3 business days, door to door, to every market we serve.
  • Dispatched the same business day for an order placed before 21:00 (Dubai time), or the next business day after.
  • Delivery charge: AED 145
  • 5-year warranty
Full SpecificationsDownload datasheet (PDF)

Felicity Solar FLA12300 12.8V 3.75kWh LiFePO4 Battery features

  • 3.75 kWh of nominal energy — 300 Ah at 12.8 V — in a single FLA12300 block

  • Accepts up to 150 A charge current, with 100 A (1875 W) recommended for continuous duty

  • 16 units in parallel build a 60 kWh bank from one model

  • Rated beyond 6000 cycles, with depth of discharge rated separately at ≥95%

  • 379 x 286 x 241 mm floor-mounted case weighing 26 kg, 29 kg packed

  • Built-in Smart BMS and fuse, LED display, CAN and RS485, IP21 enclosure

About the Felicity Solar FLA12300 12.8V 3.75kWh LiFePO4 Battery

The Felicity Solar FLA12300 is a 12.8 V LiFePO4 battery rated 300 Ah, or 3.75 kWh of nominal energy, in a floor-mounted 379 x 286 x 241 mm case weighing 26 kg. It accepts up to 150 A of charge current, works to a depth of discharge of ≥95% and is rated beyond 6000 cycles. Sixteen FLA12300 units wire in parallel for a 60 kWh bank, so one model scales from a single cabinet to a whole-house reserve. The operating window runs 11.2–14.4 V, with 14.4 V serving as both the maximum charging and the float voltage, and a recommended 100 A continuous rate — 1875 W — that leaves headroom under the 150 A continuous ceiling and the 200 A peak held for 15 seconds. A built-in Smart BMS and fuse handle protection while an LED display reports state at a glance. Charge between 0 and 55 °C, discharge from -20 to 55 °C, behind an IP21 enclosure, with CAN and RS485 communication. Certified to UN38.3 and covered by a 5 Years warranty. We are an authorised Felicity Solar distributor and supply the FLA12300 from our own stock.

Specifications last updated 17 August 2026

Felicity Solar FLA12300 12.8V 3.75kWh LiFePO4 Battery full specifications

Electrical(19)

Battery TypeLiFePO4
Cut-Off Voltage12 V
Cycle Life>6000
Depth of Discharge≥95 %
Float Charging Voltage14.4 V
Max Charge/Discharge Power (15 s)2500 W
Max Charging Current150 A
Max Charging Voltage14.4 V
Max Continuous Charge/Discharge Current150 A
Max Parallel Units16
Max System Capacity60 kWh
Nominal Capacity300 Ah
Nominal Energy3.75 kWh
Nominal Voltage12.8 V
Operating Voltage11.2-14.4 V
Peak Charge/Discharge Current (15 s)200 A
ProtectionBuilt-in Smart BMS, Fuse
Recommended Charge/Discharge Current100 A
Recommended Charge/Discharge Power1875 W

Mechanical(5)

CommunicationCAN, RS485
Display TypeLED
InstallationFloor-Mounted
Package Dimensions443 x 344 x 305 mm
Package Weight29 kg

Environmental(3)

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

Certifications(1)

  • UN38.3

Downloads & support

PDFThe manufacturer's sheet, to print or share

Frequently Asked Questions

How much energy does the FLA12300 store?

3.75 kWh — 300 Ah on a 12.8 V nominal bus. A depth of discharge of ≥95% leaves nearly all of that usable, and the LiFePO4 cells are rated beyond 6000 cycles.

How many FLA12300 batteries can be connected in parallel?

16 units, for a maximum system capacity of 60 kWh. Each unit is floor-mounted and communicates over CAN and RS485, so the bank presents itself as one pack to a compatible inverter.

What charge current does the FLA12300 accept?

150 A maximum, which is also the continuous charge and discharge ceiling, with 100 A (1875 W) recommended for everyday cycling. Peak current is 200 A for 15 seconds, and maximum charging voltage is 14.4 V, the same as the float voltage.

How much does the FLA12300 weigh and what does it measure?

26 kg, in a 379 x 286 x 241 mm case; packed for transport it measures 443 x 344 x 305 mm and weighs 29 kg. The enclosure is rated IP21, charging runs from 0 to 55 °C and discharging from -20 to 55 °C.

Customer reviews