Rubix 5.12kWh Battery | 48V | 100Ah Stack Series Lithium LifePO4 Battery RS-48100
MPN No: RS-48100
Expected ship date Feb 01 - 08
In Stock
$1,693.90
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MPN No: RS-48100
Expected ship date Feb 01 - 08
In Stock
$1,693.90
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.
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.
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.
Integrated 150A breaker
Pressure-vented LiFePO₄ cells
Touchscreen LCD displaying SOC, pack voltage, charging/discharging current, individual cell voltages, and fault logs
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
| 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 |
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.
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.
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.
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.