5.12kWh 3U server-rack LiFePO4 battery
Start with one modular battery and scale the bank as the power plan grows.
The RUiXU RX-LFP48100 packages 5.12kWh at 51.2V and 100Ah into a compact 3U LiFePO4 module for home backup, solar storage and off-grid systems. Rack, stack and floor-placement options plus CAN/RS485 communication make it a flexible building block for a professionally designed 48V battery bank.
At a glance
The numbers that shape the system decision
5.12kWhNominal energy
51.2V / 100AhBattery platform
6,000+Cycles at 90% DOD
32 unitsParallel support, up to
One module is a building block—not a complete backup system
Runtime and power depend on battery count, inverter efficiency, BMS current limits, reserve settings and the loads. Size the complete bank before selecting cabinet slots, cables and protection.
Expandable storage in a serviceable format
Add capacity in 5.12kWh steps around a familiar 19-inch rack footprint.
Compact 3U moduleThe 19 × 18.1 × 5.23 in form factor keeps a meaningful amount of storage in a relatively low rack height.
Broad communication supportCAN and RS485 protocols support a range of listed inverter families when the exact model, cable and firmware are confirmed.
Flexible physical layoutUse compatible cabinets, bracket racks or supported floor/stack arrangements to organize the bank around the installation.
System fit
Match battery count, current and cabinet architecture together.
Verify 51.2V-class inverter compatibility, communication protocol, recommended current, number of parallel modules, busbars, cables, disconnects and protection. Each module weighs approximately 103.6 lb, so rack and floor loading require deliberate planning.
Electrical planningRUiXU lists 50A recommended charge/discharge current and 100A maximum discharge. Use the current battery manual for final settings.
Indoor installationIP20 means the module needs a dry, protected location with approved support, airflow and service space.
In the box
What this listing includes
- One RUiXU RX-LFP48100 battery module
- One RJ45/CAT5e patch cable
- One ground cable
- One set of parallel 4 AWG battery cables
Installation materials, protection devices and other balance-of-system components are separate unless explicitly listed above.
Product confidence
10-year RUiXU battery warranty
RUiXU lists a 10-year warranty for its branded batteries, including the RX-LFP48100. Coverage, exclusions and remedies are governed by RUiXU’s current written warranty and require proof of purchase.
Common questions
RUiXU RX-LFP48100 FAQ
How much storage do I get from one module?
RUiXU lists 5.12kWh nominal energy. Actual usable energy depends on inverter settings, reserve, temperature, age and system losses.
Can I add modules later?
RUiXU lists up to 32 in parallel. Expansion must follow current model, firmware, cabling, protection and commissioning requirements.
Will it communicate with my inverter?
RUiXU lists many CAN and RS485 protocols, but confirm the exact inverter model, firmware, pinout and cable before ordering.
Is this the self-heating version?
No. This is RX-LFP48100. Choose RX-LFP48100-H when the design requires RUiXU’s integrated heater.