Felicity Solar FLA48400TG1 20.48kWh Battery

Solar Battery and Lithium Battery StorageModel FLA48400TG1

Felicity Solar FLA48400TG1 51.2V 20.48kWh LiFePO4 Battery

A 400 Ah floor-mounted LiFePO4 unit on a 51.2 V bus, the FLA48400TG1 carries 20.48 kWh of nominal energy, discharges 200-250 A continuously and accepts up to 200 A on charge.

  • Nominal Energy: 20.48 kWh
  • Nominal Capacity: 400 Ah
  • Nominal Voltage: 51.2 V
  • Cycle Life: >6000

Models in the FLA48100 – FLA48500 family

What sets the FLA48400TG1 apart from the other 8 models in the family: Cycle Life >6000; Depth of Discharge 95 %; Max Charge/Discharge Power (15 s) 10200-13000 W; Max System Capacity 307.2 kWh; Nominal Capacity 400 Ah; Nominal Energy 20.48 kWh; Peak Charge/Discharge Current (15 s) 300 A; Protection Built-in Smart BMS, Breaker, Fuse, MX+OF.

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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 835
  • 5-year warranty
Full SpecificationsDownload datasheet (PDF)

Felicity Solar FLA48400TG1 51.2V 20.48kWh LiFePO4 Battery features

  • 20.48 kWh of nominal energy, delivered as 400 Ah on a 51.2 V nominal bus

  • 95% depth of discharge with a rated cycle life above 6000

  • 200-250 A of continuous charge and discharge, with a 300 A / 10,200-13,000 W peak held for 15 seconds

  • Charging at up to 200 A, 57.6 V maximum and float charging voltage, 44.8 V cut-off, 44.8-57.6 V operating window

  • Built-in Smart BMS with breaker, fuse and MX+OF, reporting over CAN2.0, RS485, Wi-Fi and Bluetooth with LCD and LED readouts

  • Floor-mounted at 960 x 265 x 450 mm and 144 kg, rated IP21, with up to 15 units in parallel for 307.2 kWh

About the Felicity Solar FLA48400TG1 51.2V 20.48kWh LiFePO4 Battery

The Felicity Solar FLA48400TG1 is a floor-mounted LiFePO4 battery rated 400 Ah at 51.2 V nominal, which is 20.48 kWh of nominal energy. Depth of discharge is 95%, cycle life is above 6000, it charges at up to 200 A, and it sustains 200-250 A of continuous charge or discharge current. Short bursts are rated separately: the FLA48400TG1 holds 300 A, or 10,200-13,000 W, for 15 seconds. The operating window runs 44.8-57.6 V, with float and maximum charging voltage both at 57.6 V and cut-off at 44.8 V. Up to 15 units parallel into a 307.2 kWh bank. Protection is a built-in Smart BMS with breaker, fuse and MX+OF; the unit reports over CAN2.0, RS485, Wi-Fi and Bluetooth and carries an LCD alongside LED indicators. It measures 960 x 265 x 450 mm and weighs 144 kg, shipping in a 1040 x 481 x 570 mm carton at 167 kg gross. Rated IP21, charging 0-55°C, discharging -20 to 55°C, optimal 20-30°C, below 2000 m. Warranty: 5 Years. We are an authorised Felicity Solar distributor and supply the FLA48400TG1 from our own stock.

Specifications last updated 17 August 2026

Felicity Solar FLA48400TG1 51.2V 20.48kWh LiFePO4 Battery full specifications

Electrical(17)

Battery TypeLiFePO4
Cut-Off Voltage44.8 V
Cycle Life>6000
Depth of Discharge95 %
Float Charging Voltage57.6 V
Max Charge/Discharge Power (15 s)10200-13000 W
Max Charging Current200 A
Max Charging Voltage57.6 V
Max Continuous Charge/Discharge Current200-250 A
Max Parallel Units15
Max System Capacity307.2 kWh
Nominal Capacity400 Ah
Nominal Energy20.48 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, MX+OF

Mechanical(5)

CommunicationCAN2.0, RS485, Wi-Fi, Bluetooth
Display TypeLCD, LED
InstallationFloor-Mounted
Package Dimensions1040 x 481 x 570 mm
Package Weight167 kg

Environmental(6)

Charging Temperature Range0-55 °C
Discharging Temperature Range-20 to 55 °C
Operating Altitude<2000 m
Optimal Operating Temperature20-30 °C
Protection DegreeIP21
Storage Temperature Range0-35 °C

Downloads & support

PDFThe manufacturer's sheet, to print or share

Frequently Asked Questions

How much energy does the FLA48400TG1 store?

20.48 kWh of nominal energy, from 400 Ah at a 51.2 V nominal voltage. Depth of discharge is rated at 95%, and cycle life is above 6000, so the pack is specified for long daily cycling rather than standby duty.

How much current can the FLA48400TG1 charge and discharge?

200-250 A continuously, with a 300 A peak, equal to 10,200-13,000 W, held for 15 seconds. Maximum charging current is 200 A, and the operating voltage window is 44.8-57.6 V with cut-off at 44.8 V.

How many FLA48400TG1 units can be wired in parallel?

15 units, giving a maximum system capacity of 307.2 kWh. Each unit carries a built-in Smart BMS with breaker, fuse and MX+OF, and reports over CAN2.0, RS485, Wi-Fi and Bluetooth so a stack can be monitored as one bank.

What are the FLA48400TG1's dimensions, weight and warranty?

960 x 265 x 450 mm and 144 kg for the floor-mounted unit; it ships in a 1040 x 481 x 570 mm carton at 167 kg gross. Protection degree is IP21 and the warranty is 5 Years.

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