Stack Series

The Stack Series delivers flexible, modular solar battery storage designed for residential and light commercial applications. Built for reliability and easy expansion, it provides dependable power for solar integration, backup, and everyday energy. It uses a compact 5.12kWh LiFePO4 module and is simple to install and scale, from a single battery to over 150kWh, without external racking, exposed wiring, or adding unnecessary complexity.

Product Documents

2026 Rubix Stack 24 Spec Sheet

Stack Series 24V Spec Sheet

2026 Rubix Stack 48 Spec Sheet

Stack Series 48V Spec Sheet

2026 Rubix Stack Sell Sheet 2-0

Stack Series Sell Sheet 2.0

stack series owners manual

Stack Series Owner’s Manual

2026 Stack Warranty

Stack Series Warranty

Features & Benefits

Stack Series batteries combine strong power management with durable construction for consistent, long-term performance. Modular stacking allows you to create the right-sized system today with seamless expansion tomorrow. Designed with installer efficiency, Stack Series delivers reliable energy without unnecessary complications. The Stack Series gives you:

  • Modular stacking in 5.12kWh increments
  • Closed-loop communication with most major inverter brands
  • Proven Impactiv cell balancing for extended battery life
  • Compact footprint with no exposed racks or cabling
  • Designed for residential backup, solar energy self-consumption, and light commercial use
  • This is energy storage that scales intelligently—without forcing redesigns or workarounds
stack series battery rear detail shot

Videos

Watch installation guides, setup walkthroughs, and best-practice videos for the Stack Series. These resources provide clear, step-by-step support to help ensure successful installs and optimal performance.

Installing a 70kWh Rubix Battery Bank + Sol-Ark 15kW Inverter | Full Setup & Walkthrough

Start Small. Go Big.

Begin with a single 5.12kWh module and expand as energy demands increase. Stack Series batteries allow up to 7 batteries per stack and 32 x Parallel (457kWh), delivering scalable capacity without sacrificing system simplicity or aesthetics.

R-Series-stacking-transparent-2

Components

top view of stack battery lid

Base & Lid

The base and lid provide a stable, protective foundation for Stack Series battery installations. Designed to integrate seamlessly with the system, they help ensure proper alignment, protection, and a clean finished appearance.

Busbars

Busbars enable safe, efficient electrical connections between stacked batteries. Engineered for reliability and proper current distribution, they simplify system assembly while maintaining consistent performance.

stack series battery with one battery. rear view with cover

Magnetic Cover

The magnetic cover offers quick, secure access to the top of the Stack Series system. Its tool-free design allows for easy installation and removal while maintaining a clean, finished look.