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RUIXU Battery
RUiXU RX-LFP48100 48V 100Ah 5.12kWh 3U Rack Mount LiFePO4 Battery
RUiXU RX-LFP48100 48V 100Ah 5.12kWh 3U Rack Mount LiFePO4 Battery
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- Price: $3,776.00
- Regular price
- List Price: $4,076.00
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- Price: $3,776.00
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PRODUCT DESCRIPTION
RUiXU RX-LFP48100 48V 100Ah 5.12kWh 3U Rack Mount LiFePO4 Battery
The RUiXU RX-LFP48100 is a 48V 100Ah Lithium Iron Phosphate (LiFePO4) server rack battery designed for residential energy storage, solar backup, and off-grid applications. It provides 51.2V nominal voltage, 5.12kWh of nominal energy, 4.92kWh of usable energy, and a standard 3U rack-mounted form factor. The battery supports RS485 and CAN communication, up to 32 units connected in parallel, and multiple installation configurations for modular energy storage systems.
Key Features
- 5.12kWh Energy Storage: Provides 100Ah capacity at 51.2V nominal voltage for compatible 48V energy storage systems.
- 4.92kWh Usable Energy: Provides approximately 4.92kWh of usable energy under the specified test conditions.
- 48V LiFePO4 Chemistry: Uses Lithium Iron Phosphate battery cells for residential and stationary energy storage applications.
- 3U Rack-Mount Design: Uses a standard 3U, 133.5mm-height format for compatible battery racks and cabinets.
- 19-Inch Rack Format: Designed around a 19-inch rack width for organized server-rack and energy-storage installations.
- 32-Battery Parallel Expansion: Supports up to 32 units connected in parallel for larger battery-bank configurations.
- RS485 & CAN Communication: Provides communication interfaces for compatible inverters and energy-management systems.
- Inverter Protocol Selection: DIP address settings allow selection of RS485 baud rate and compatible inverter communication protocols.
- Wide Inverter Compatibility: CAN communication is listed for compatible Victron, SMA, Studer Innotec, Sofar, Sol-Ark, Solis, GoodWe, Deye, Growatt, SAJ, LuxPower, Megarevo, INVT, Sermatec, TBB, MUST, Sunsynk, and Schneider systems.
- RS485 Compatibility: RS485 communication is listed for compatible MPP, Voltronic, RCT, and Alpha Outback systems.
- Intelligent BMS: Integrated Battery Management System provides over-charge, over-discharge, and over-current protection while supporting battery cell balancing.
- 250A Quick-Plug Capacity: Quick-plug connections provide up to 250A continuous overcurrent capacity with tool-less installation.
- Cell Balancing: The BMS supports battery cell balancing to help maintain cell consistency.
- Maintenance Access: A dedicated inspection port provides access to the BMS and fuse for service requirements.
- Multiple Installation Options: Supports wall-mounted, floor-mounted, stacked, and rack-mounted configurations.
- Indoor Battery Design: The supplied technical specification identifies the battery as IP20 and intended for indoor installation.
- Long Cycle Life: Rated for at least 6,000 cycles at 90% depth of discharge under the stated test conditions.
- Extended Cycle Rating: The supplied documentation also specifies at least 9,500 cycles at 80% depth of discharge.
- 10-Year Warranty: The supplied product documentation specifies a 10-year warranty.
- Compact Construction: Measures approximately 482 × 133.5 × 460mm for rack-based energy storage installations.
- 103.6 lb Weight: Weighs approximately 47kg per battery module.
Specifications
- Brand: RUiXU
- Model: RX-LFP48100
- Battery Type: 3U rack-mounted LiFePO4 battery
- Chemistry: Lithium Iron Phosphate (LiFePO4)
- Nominal Voltage: 51.2V
- Nominal Capacity: 100Ah
- Nominal Energy: 5.12kWh
- Usable Energy: 4.92kWh
- Operating Voltage Range: 44.8V–56.0V
- Charge Voltage: 56.0V
- Float Voltage: 54.6V
- Recommended Charge Current: 50A
- Maximum Charge Current: 70A
- Recommended Discharge Current: 50A
- Maximum Discharge Current: 100A
- Peak Discharge Current: 101–119A for 5 minutes; 120–149A for 15 seconds
- Communication: RS485 / CAN
- Maximum Parallel Connection: 32 batteries
- Rack Format: 3U / 133.5mm height
- Dimensions: 482 × 133.5 × 460mm / approximately 19 × 5.2 × 18.1 inches
- Weight: Approximately 47kg / 103.6 lb
- IP Rating: IP20
- Installation: Wall mounted, floor mounted, stacked, or rack mounted
- Operating Temperature: -10°C to 50°C / 14°F to 122°F
- Storage Temperature: -10°C to 45°C / 14°F to 113°F
- Relative Humidity: 5%–90%, non-condensing
- Maximum Installation Altitude: 4,000m
- Cycle Life: ≥6,000 cycles at 90% DOD under specified test conditions
- Extended Cycle Rating: ≥9,500 cycles at 80% DOD
- Design Life: 15 years
- Certifications: UL9540A, CE, IEC62619, UL1973, UN38.3
- Warranty: 10 years
Suitable Applications
The RUiXU RX-LFP48100 is designed for compatible residential energy storage, solar battery systems, backup power, and off-grid installations. Its 3U rack-mounted format, inverter communication interfaces, and parallel expansion capability make it suitable for modular battery banks installed in racks and compatible battery cabinets.
Rack Mounting & Installation
The RX-LFP48100 uses a 3U form factor with dimensions of approximately 482 × 133.5 × 460mm. The battery supports wall-mounted, floor-mounted, stacked, and rack-mounted installation methods. Optional bracket kits and battery cabinets can be used for different installation configurations.
Parallel Expansion
Up to 32 compatible RX-LFP48100 batteries can be connected in parallel. This allows a single 5.12kWh battery module to be expanded into a larger energy storage system as capacity requirements increase. Use appropriately sized parallel cables, communication wiring, overcurrent protection, and compatible inverter equipment for expanded configurations.
Inverter Communication
The RX-LFP48100 includes RS485 and CAN communication interfaces. DIP address settings allow selection of the RS485 baud rate and compatible inverter communication protocol. CAN-compatible inverter systems listed in the supplied documentation include Victron, SMA, Studer Innotec, Sofar, Sol-Ark, Solis, GoodWe, Deye, Growatt, SAJ, LuxPower, Megarevo, INVT, Sermatec, TBB, MUST, Sunsynk, and Schneider. RS485 compatibility is listed for MPP, Voltronic, RCT, and Alpha Outback systems.
Smart BMS & Protection
The integrated Battery Management System provides over-charge, over-discharge, and over-current protection while supporting battery cell balancing. The battery also includes a side inspection and maintenance port for access to the BMS and fuse.
Included Components
- 1 × RUiXU RX-LFP48100 Battery: 48V 100Ah rack-mounted LiFePO4 battery.
- 1 × RJ45/CAT5e Patch Cable: Communication cable for compatible battery and inverter connections.
- 1 × Ground Cable: Grounding cable for installation.
- 1 × Set of Parallel 4AWG Cables: Parallel connection cables supplied for the battery installation.
Installation & Operation
The RX-LFP48100 is specified as an IP20 battery intended for indoor installation. Install the battery in a dry, protected location with appropriate clearance, ventilation, grounding, overcurrent protection, and communication connections. Configure the connected inverter and charging equipment according to the battery's voltage, current, and communication requirements.
Important Usage Note
Actual usable energy, charging performance, discharge capability, cycle life, and overall system capacity can vary with inverter selection, depth of discharge, charge and discharge rate, temperature, wiring, and installation conditions. The supplied documentation notes that system usable energy may vary by inverter brand and that derating can occur at certain operating temperatures. Verify battery, inverter, charger, communication, wiring, and protection requirements before commissioning.

Higher Performance
More power, longer range
Longer Lifespan
Up to 10x longer than lead-acid
Safe & Reliable
Built-in BMS protection
Easy Installation
Plug & play design
Trusted by Golf Cart Owners
See why customers choose us for dependable lithium power, premium brands and knowledgeable support.
“I was unsure which battery setup would work with my cart, but the support was excellent and helped me choose the right option.”
“Shipping was quick and everything arrived well packed. Installation was straightforward and the battery has been performing great.”
“Much lighter than my old lead-acid setup and I no longer have to worry about constant maintenance. Very happy with the upgrade.”
“Great selection of quality brands and the website made it easy to compare the options for my 48V golf cart.”
“The new battery gives us plenty of range for a full day around the community. Power delivery stays strong even near the end of the charge.”
“Helpful service, clear product information and a smooth ordering process. I would definitely shop here again for golf cart upgrades.”