Rubix Stack Series Base & Lid

The Rubix Stack Series Base & Lid is the required mounting and protective enclosure accessory for the Stack Series battery family, compatible with both the RS51100 (48V/100Ah) and RS25200 (24V/200Ah) battery modules. The base provides the horizontal installation platform that Stack Series batteries require as a mandatory installation condition; the lid protects the uppermost battery in the stack. Both Stack Series configurations share identical base and lid dimensions — a single part serves either voltage variant, and both can be used in the same installation.

Key specifications

• Compatibility: fits Stack Series RS51100 (48V/100Ah) and RS25200 (24V/200Ah) — both models use the same base and lid
• Base dimensions: 22.6 × 19.3 × 6.8 in.; weight 42 lbs.
• Lid dimensions: 22.6 × 19.3 × 0.8 in.; weight 20.9 lbs.
• Stack capacity supported: base accommodates up to 6 batteries per stack for both RS51100 and RS25200
• Installation type: indoor use only; horizontal orientation required — battery cannot be installed without the base unit

Required for compliant installation

Stack Series batteries are rated for horizontal installation with base unit only — there is no alternative orientation. The base establishes the correct mounting position and provides the structural platform that bears the cumulative weight of up to six stacked battery modules, each weighing 108 lbs. The lid seals the top of the completed stack, protecting the uppermost battery's terminals and touchscreen from dust and incidental contact during normal operation.

When you need the Stack Series Base & Lid

• New stack installation: The base must be in place before the first battery can be positioned — it is the foundation of every Stack Series installation.
• Adding a parallel stack: Each additional stack in an expanded system requires its own base and lid; one set is needed per stack regardless of how many batteries the stack contains.
• Dual-voltage builds: Installations combining 48V RS51100 and 24V RS25200 stacks can use the same base and lid for both voltage configurations without ordering separate hardware.
• Replacement: Direct replacement for damaged or missing base or lid hardware on any Stack Series installation.

Stack Series compatibility

The base and lid are designed for the Stack Series RS51100 (48V/100Ah) and RS25200 (24V/200Ah) battery modules, supporting up to 6 units per stack on either model. Required installation clearances: 3 in. between the battery and wall, 4 in. between parallel stacks, 6 in. between the top of the battery stack and solar equipment mounted on the wall, and 4 ft. from any water source or conductor. The Stack Series Base & Lid is not compatible with the Giga Stack Series (RGS51100/RGS51200) or R-Series (RRS51280) battery lines, which use different enclosure hardware with different footprints and load ratings.

Why choose the Rubix Stack Series Base & Lid?

The Rubix Stack Series Base & Lid is the specified enclosure hardware for Stack Series batteries and the only base rated for the full six-module stacking load. Its shared compatibility across both the 48V and 24V Stack Series configurations simplifies procurement for mixed-voltage installations — one part covers both. With a base footprint of 22.6 × 19.3 in. and a height of 6.8 in., it integrates cleanly with the Stack Series battery module dimensions and keeps the completed stack within the required installation clearances.