UL-Certified 51.2V Rack-Mounted LiFePO4 Battery

UL-Certified 51.2V Rack-Mounted LiFePO4 Battery

Product: UL-Certified Rack-Mounted LiFePO4 Battery
Nominal voltage: 51.2V DC
Nominal capacity: 100Ah / 314Ah
Nominal energy: 5.12kWh / 16.1kWh
Operating voltage range: 44.8–58.4V DC
Standard charge/discharge rate: 0.5C
Parallel expansion: Up to 16 compatible battery units
Battery management: Built-in intelligent BMS
Battery diagnostics: EIS cell-health diagnosis
Communication: RS485
Status indication: LED indicators
Cycle life: 6000+ cycles at 80% DOD
Certification: UL certified
Protection level: IP20
Cooling: Natural air cooling
Charging temperature: 0–55°C
Storage temperature: −20–55°C; recommended 10–35°C
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Description
Technical Parameters
UL-CERTIFIED RACK-MOUNTED LITHIUM IRON PHOSPHATE BATTERY
5.12 / 16.1 kWh
ENERGY OPTIONS
51.2 V
NOMINAL VOLTAGE
0.5C
CONTINUOUS RATE
6000+
CYCLES @ 80% DOD

Product Overview

LFP-R is a UL-certified 51.2V rack-mounted lithium iron phosphate battery platform for telecom backup, data rooms, residential storage and industrial energy applications. The system supports up to 16 compatible battery units in parallel for scalable energy storage. The two configurations provide 5.12kWh or 16.1kWh, with an intelligent BMS, RS485 communication, EIS cell-health diagnosis, status LEDs and modular DC capacity expansion.

MODULAR STORAGE OPTIONS

Choose 5.12kWh or 16.1kWh to match your backup energy requirements. The 51.2V platform supports integration with compatible rectifiers, inverters and UPS equipment.

Product Features

  • Rack-ready Modular DC Storage

The rack-mounted format supports independent DC supply and modular expansion for structured equipment-room installations.

  • Intelligent BMS Protection

The BMS monitors cell condition, supports high-precision balancing and coordinates multiple automatic protections for stable operation.

  • EIS Cell-health Diagnosis

Electrochemical impedance spectroscopy data can support condition assessment by tracking internal electrochemical response over time.

  • RS485 and Status Indication

Built-in RS485 and LED indicators support system integration, operating visibility and remote data workflows.

  • Application Flexibility

The platform is intended to integrate with compatible telecom rectifiers, photovoltaic systems and UPS equipment.

Cell Quality Control for Consistent Performance

Consistent battery performance starts with cell quality. Cell inspection, electrical matching and careful handling help reduce variation within a battery module and support stable operation.

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Cell preparation 
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Cell processing workstation
Cell consistency

Comparing capacity, voltage and internal resistance under defined conditions helps select compatible cells for module assembly.

Physical condition

Inspection of cell housings, terminals and insulation helps identify damage or irregularities before assembly.

Controlled handling

Protective trays and organized processing help limit mechanical damage and maintain orderly cell handling through production.

Automated Production for Reliable Build Quality

Automated workstations and an organized assembly line support repeatable production processes. Controlled positioning, consistent connections and in-process inspection help maintain uniform build quality across battery assemblies.

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Automated production workstation
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Organized battery assembly line
Repeatable processes

Consistent machine settings and component positioning help reduce variation in repetitive assembly operations.

Assembly quality

Secure connections, protected wiring and correct component fit support reliable construction of the finished battery.

Process control

Checks throughout assembly help identify deviations early and support consistent quality before final performance testing.

Technical Specifications

Model-specific Electrical and Mechanical Data
Parameter
LFP51.2-100R
LFP51.2-314R
Nominal voltage (V)
51.2
51.2
Cell specification
100
314
Nominal capacity (Ah)
100
314
Nominal energy (kWh)
5.12
16.1
Operating voltage range (V)
44.8–58.4
44.8–58.4
Recommended charging voltage (V)
55.2
55.2
Recommended discharge cut-off (V)
48
48
Dimensions (D×W×H, mm)
520×435×143
560×540×245
Weight (kg)
49
135
Shared Operating Parameters
Standard charge/discharge rate
0.5C
Maximum continuous charge/discharge rate
0.5C
Allowable humidity range
85% RH
Storage temperature
−20 to 55°C; recommended 10 to 35°C
Charging temperature
0 to 55°C
Protection level
IP20
Cooling method
Natural air cooling
Parallel expansion
Up to 16 compatible battery units
Cycle life
6000+ cycles @ 80% DOD

Specifications are subject to change without prior notice.

Battery Monitoring and Rack Integration

EIS is a diagnostic input, not a standalone pass/fail result

Impedance trends can help identify cell ageing or inconsistency, but interpretation should consider temperature, SOC, baseline data and the manufacturer's diagnostic method.

Rack installation needs structural and thermal coordination

Verify rack load capacity, rail or shelf compatibility, fastening, access and airflow. The 16.1kWh model weighs 135kg and requires suitable handling equipment.

Communication compatibility matters

RS485 provides the communication interface. Successful integration also depends on a compatible protocol, firmware and cable pinout for the connected equipment.

Routine care supports reliable operation

No routine electrolyte service is expected, but operators should still review alarms, connections, temperature, ventilation, rack condition and abnormal physical signs.

Installation and Maintenance

  • Confirm rack load, shelf/rail arrangement, fastening and lifting method before installation.
  • Maintain natural-air cooling clearances and keep the IP20 battery in a controlled indoor environment.
  • Coordinate DC polarity, cable sizing, protection, grounding and terminal torque with the equipment design.
  • Commission RS485 addresses and verify every expected battery is visible to the supervisory system.
  • Trend EIS or health indicators under comparable SOC and temperature conditions where supported.
  • Inspect LEDs, alarms, rack fasteners, connectors, ventilation and abnormal heat during scheduled checks.

Packing and Transport

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Ship each battery in approved protective packaging with terminals insulated against short circuit. Confirm required lithium-battery test summaries, labels, documents, state-of-charge limits and carrier restrictions for the selected transport route. Keep packages upright and dry, protect them from impact, and quarantine any unit showing deformation, leakage, unusual odor or abnormal heat.

FAQ

Can this battery be installed outdoors?

The IP20 battery requires a dry, protected indoor installation with suitable ventilation and service access.

Can EIS predict the exact remaining battery life?

Not by itself. EIS is one diagnostic signal and should be interpreted with operating history, temperature, SOC, capacity tests and manufacturer algorithms.

How many battery units can be connected in parallel?

The system supports up to 16 compatible battery units in parallel. Use a matched configuration with coordinated communication, wiring and protection.

Can the two capacity models be mixed in one bank?

Do not assume so. Confirm the approved parallel configuration, firmware, addressing, current sharing and matching rules before mixing capacities.

What routine maintenance is needed?

Routine checks include alarms, connections, ventilation, rack condition and signs of unusual heat or physical damage. Electrical servicing requires safe isolation.

Find the Right Rack Battery Configuration

Contact SINELINK with your rectifier, UPS or inverter model, critical loads, required backup duration, rack layout and communication requirements to select a suitable battery configuration.

Send Inquiry Now
Related: Residential Energy Solutions · More Products

Product configuration and supply scope are specified in your quotation.

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Technical Specifications

Model-specific Electrical and Mechanical Data
Parameter
LFP51.2-100R
LFP51.2-314R
Nominal voltage (V)
51.2
51.2
Cell specification
100
314
Nominal capacity (Ah)
100
314
Nominal energy (kWh)
5.12
16.1
Operating voltage range (V)
44.8–58.4
44.8–58.4
Recommended charging voltage (V)
55.2
55.2
Recommended discharge cut-off (V)
48
48
Dimensions (D×W×H, mm)
520×435×143
560×540×245
Weight (kg)
49
135
Shared Operating Parameters
Standard charge/discharge rate
0.5C
Maximum continuous charge/discharge rate
0.5C
Allowable humidity range
85% RH
Storage temperature
−20 to 55°C; recommended 10 to 35°C
Charging temperature
0 to 55°C
Protection level
IP20
Cooling method
Natural air cooling
Parallel expansion
Up to 16 compatible battery units
Cycle life
6000+ cycles @ 80% DOD

Specifications are subject to change without prior notice.

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