Rubix 5.12kWh Battery | 48V | 100Ah Stack Series Lithium LifePO4 Battery RS-48100

Rubix 5.12kWh Battery | 48V | 100Ah Stack Series Lithium LifePO4 Battery RS-48100

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Rubix 5.12kWh Battery | 48V | 100Ah Stack Series Lithium LifePO4 Battery RS-48100

Rubix 5.12kWh Battery | 48V | 100Ah Stack Series Lithium LifePO4 Battery RS-48100

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MPN No: RS-48100
Regular price $1,693.90

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Regular price $1,693.90

Rubix 5.12kWh | 48V | 100Ah Stack Series Lithium LifePO4 Battery RS-48100

The Rubix RS-48100 Stack Series Battery is a modular 48-volt lithium iron phosphate (LiFePO₄) energy storage solution designed for residential backup power, solar self-consumption, and scalable battery systems. Each module delivers 100Ah of capacity and 5.12kWh of usable energy, allowing users to build flexible systems ranging from small backup setups to larger whole-home energy storage solutions.


Key Technology

  • 5.12kWh Modular Energy Storage
    Each 48V module provides reliable daily energy storage with simple stack-based expansion.

  • LiFePO₄ Battery Chemistry
    Lithium iron phosphate cells offer superior safety, long cycle life, and thermal stability compared to conventional lithium-ion batteries.

  • Stackable System Architecture
    Supports up to 6 batteries per stack, enabling systems to scale as energy needs grow.

  • Integrated Battery Management System (BMS)
    Advanced protections against over-voltage, under-voltage, over-current, and temperature extremes ensure safe, reliable operation.


Best Uses

  • Residential Solar + Storage
    Ideal for pairing with 48V hybrid and off-grid inverters.

  • Backup Power Systems
    Provides dependable energy during grid outages with expandable capacity.

  • Off-Grid & Remote Power
    Well-suited for cabins, workshops, and remote installations.

  • Expandable Battery Banks
    Start with one module and add storage over time as power demands increase.


Safety & Monitoring

  • Integrated 150A breaker

  • Pressure-vented LiFePO₄ cells

  • Touchscreen LCD displaying SOC, pack voltage, charging/discharging current, individual cell voltages, and fault logs


Warranty & Lifecycle

  • Cycle Life: 3,000 cycles @ 100% DoD / 4,500 cycles @ 80% DoD / 7,000 cycles @ 50% DoD

  • Design Life: 14+ years

  • Battery Certification: UL 9540A (pending)

  • Transport Certification: UN38.3


Product Specifications

Specification Details
Model RS-48100
Nominal Voltage 51.2 V (48V class)
Capacity 100 Ah
Energy Capacity 5.12 kWh
Max Continuous Discharge 75 A (3.84 kW)
Peak Discharge (3 sec) 200 A (10.2 kW)
Max Continuous Charge 70 A (3.58 kW)
Recommended Absorb Voltage 56.8 V
Float Voltage 54.4 V
Battery Chemistry Lithium Iron Phosphate (LiFePO₄)
Max Batteries per Stack 6
IP Rating IP50 (Indoor use)
Operating Temperature 32°F to 120°F
Dimensions 22.6 × 19.3 × 6.2 in
Weight 108 lbs

 

About Rubix Battery:

Rubix Battery is a U.S.-based solar energy storage company that designs and manufactures premium lithium (LiFePO₄) battery systems for residential, commercial, and off-grid use. Formed from the merger of MillerTech and ARK Battery, Rubix focuses on scalable, stackable batteries with long cycle life, advanced management systems, and strong warranties to support reliable solar power storage.


Scalable 48V Storage Built for Long-Term Reliability

The Rubix RS-48100 combines safe LiFePO₄ chemistry, integrated monitoring, and a modular stackable design—making it a dependable choice for homeowners and installers seeking flexible, future-ready 48V energy storage systems.

 

Why Buy From US Solar Supplier

US Solar Supplier is an American-founded company based in Kentucky dedicated to offering top-quality solar components from trusted manufacturers. We provide competitive pricing, dependable inventory, and products backed by warranties you can trust.

Our inventory is updated daily with the latest solar technologies, and our experienced team is ready to assist with product selection, system design, and installation guidance.


Need Assistance?

Have questions before you order? Call 1-800-230-7004 to speak with our knowledgeable support team. We’re here to help with product details, compatibility questions, or purchasing support.

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