21700 Battery Cell Modular Grid (from 1x2 to 7x7)

This project is a modular battery cell holder designed for 21700 lithium cells, specifically intended for TPU printing to ensure durability and a perfect friction fit. 
It keeps cells perfectly aligned, separated, and mechanically protected, making it ideal for battery packs, testing setups, storage, or prototyping.

The design is provided in multiple grid configurations, allowing you to choose exactly the layout you need without modifying the model.

Available configurations

Each model is available as a dedicated print profile (rows × columns):

• 1 × 2 → 1 × 7
• 2 × 2 → 2 × 7
• 3 × 2 → 3 × 7
• 4 × 2 → 4 × 7
• 5 × 2 → 5 × 7
• 6 × 2 → 6 × 7
• 7 × 2 → 7 × 7 

See my other models for FPV and whoop.