Felicity Solar FLH48100UG2

Solar Battery and Lithium Battery StorageModel FLH48100UG2

Felicity Solar FLH48100UG2 51.2V 5.12kWh LiFePO4 Battery

The FLH48100UG2 is a single 51.2V, 5.12kWh LiFePO4 battery module from Felicity Solar. Five to seventeen of them wired in series build a 25.6kWh to 87.04kWh system.

  • System Nominal Energy (Min-Max): 25.6-87.04 kWh
  • System Nominal Voltage (Min-Max): 256-870.4 V
  • Cycle Life: ≥6000 Cycles
AED 15,360incl. 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: free
  • 2-year warranty
Full SpecificationsDownload datasheet (PDF)

Felicity Solar FLH48100UG2 51.2V 5.12kWh LiFePO4 Battery features

  • One module is 51.2V nominal and 5.12kWh of LiFePO4 storage.

  • Series stacking from 5 to 17 modules, for a system of 25.6kWh to 87.04kWh.

  • 90% depth of discharge, applied to whichever stack size is built.

  • A smart BMS with breaker and fuse is built into each of the 5 to 17 modules.

  • RS485 communication interface for reporting the stack to the inverter.

  • Multi-level rack mounting, with an operating range of -20°C to 55°C.

About the Felicity Solar FLH48100UG2 51.2V 5.12kWh LiFePO4 Battery

The Felicity Solar FLH48100UG2 is a rack-mounted LiFePO4 battery module rated 51.2V and 5.12kWh. It is not sold as a fixed-size system: five to seventeen modules are wired in series, so a finished stack stores between 25.6kWh and 87.04kWh, with 90% of that energy usable on discharge. Those are two different numbers and it is worth keeping them apart. 5.12kWh describes one module; the 25.6-87.04kWh range describes the cluster it belongs to, and both the stored energy and the stack voltage rise with every module added, because the modules sit in series rather than in parallel. Each module carries its own smart BMS with a breaker and a fuse, and reports over an RS485 communication interface. Multi-level rack options let the same modules go in as a compact tower or a wider frame, and the operating temperature range is -20°C to 55°C. We supply the FLH48100UG2 as an authorised Felicity Solar distributor, with price, availability and delivery set per market.

Specifications last updated 23 July 2026

Felicity Solar FLH48100UG2 51.2V 5.12kWh LiFePO4 Battery full specifications

Electrical(22)

Battery DesignationIFPP/54/150/120/[(1P16S) NS] M/-20+50/95
Depth of Discharge (DoD)90 %
Max. Continuous Charge/Discharge Current100A
Rated DC Power40.96kWh 61.44kWh
Recommend Charge/Discharge Power50A
Battery TypeLiFePO4
Communication PortRS485 / CAN
Cycle Life≥ 6000 Cycles
Display TypeLED+LCD
Nominal Capacity100Ah
Nominal Energy5.12kWh
Nominal Voltage51.2V
Number of Battery Modules5(Min) 12 17(Max)"
System Energy25.6 – 87.04 kWh (5–16 modules)
System Nominal Voltage256 – 870.4 V (5–16 modules)
System Operating Voltage232~288V 371.2~460.8V 556.8~691.2V 788.8~979.2V
System Usable Energy25.6 – 87.04 kWh (5–16 modules)
Module Nominal Energy5.12 kWh
Module Nominal Voltage51.2 V
Module Nominal Capacity100 Ah
Recommended Charge/Discharge Current50 A
Max Continuous Charge/Discharge Current100 A

Mechanical(10)

InstallationRack-Mounting
Package Dimension687x562x250MM
Control Module Dimensions482.6 x 565 x 150 mm
Control Module Weight10.3 kg
Battery Module Dimensions482.6 x 565 x 133 mm
Battery Module Weight41.3 kg
13-Floor Rack Weight49 kg
9-Floor Rack Weight37.7 kg
IP Rating of EnclosureIP21
ProtectionBuilt-in Smart BMS, Breaker, Fuse

Environmental(10)

Storge Temperature Range0°C~+35°C
Working Temperature RangeCharge:0°C~+55°C
Altitude≤2000M
Humidity5%~95%
Working Temperature (Charge)0°C to +55°C
Working Temperature (Discharge)-20°C to +55°C
Storage Temperature0°C to +35°C
CertificationCE / IEC 62619 / UN38.3
Warranty10 Years
Operating Temperature-20°C to 55°C

Certifications(1)

  • CE

Downloads & support

PDFThe manufacturer's sheet, to print or share

Frequently Asked Questions

How many FLH48100UG2 modules can be stacked together?

Between 5 and 17 modules are wired in series. Five modules give a 25.6kWh system and seventeen give 87.04kWh, with each further module adding its own 5.12kWh to the stack.

Is 5.12kWh the capacity of the whole battery?

No. 5.12kWh at 51.2V is one FLH48100UG2 module. A working system is 5 to 17 of those modules in series, so the installed energy is 25.6kWh to 87.04kWh depending on how many are fitted.

How much of the FLH48100UG2's energy can actually be used?

The published depth of discharge is 90%, and it applies to the stack you build rather than to a fixed system size, so 90% of anything between 25.6kWh and 87.04kWh is usable.

How does the FLH48100UG2 connect and where can it be installed?

Each module has a built-in smart BMS with breaker and fuse and an RS485 communication interface for reporting to the inverter. Multi-level racks suit different spaces, and the operating temperature range is -20°C to 55°C.

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