The single slot 18650 battery spacer holder positions and separates individual 18650 cells in a battery pack assembly, the spacer clips around the cell body and interlocks with adjacent spacers to maintain consistent cell to cell spacing across the entire pack. Consistent spacing matters in pack assembly because uneven cell gaps cause nickel strip tabs to sit at inconsistent heights, making spot welds unreliable and tab contact area variable across cells.
The 18650 battery spacer 20 x 20 x 8 mm dimensions holds one cell at a time assembling a full pack requires one spacer per cell. The interlocking design aligns cells in rows and columns without additional jigs or fixtures during assembly. The single battery spacer holder high quality plastic construction resists the light heat generated during spot welding at adjacent cell terminals. Available on StemVolt. This spacer is working on 18650 battery pack construction and multi cell pack assembly.
Related Product:
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Checkout Two Slot 18650 Cell Spacer
Features:
- Cell clip holds one 18650 cell firmly during pack assembly process
- Interlocking design aligns adjacent spacers for consistent multi-cell layouts
- High quality plastic resists light heat from adjacent spot weld operations
- No tools required, cell snaps into spacer by hand during assembly
Technical Specifications:
| Specification | Details |
|---|---|
| Product Type | Battery Spacer Holder |
| Supported Battery Type | 18650 Li-Ion Cell |
| Mounting Type | Single Cell Mount |
| Material | High Quality Plastic |
| Dimensions | 20 × 20 × 8mm |
Applications:
- Single slot 18650 battery spacer holder positions cells in 3S2P pack assembly
- Battery spacer aligns 18650 cells in multi-row power bank pack construction
- 18650 battery spacer spaces cells evenly in e bike battery module assembly
- Single battery spacer holder positions cells for consistent nickel strip tab height
- 2 slot spacer cell aligns adjacent 18650 cells in parallel group pack layout
Package Includes:
- 1 × Single Slot 18650 Battery Spacer Holder














Tanmay Kulkarni –
Genuine quality accessory
Udai Singh Shaktawat –
Great value for money
Bikramjit Grewal –
These 18650 battery spacers helped me maintain proper cell alignment while assembling packs.
Subramanian Swamy –
Useful for pack assembly
Arindam Chatterjee –
Neat finishing and strong material make this single battery spacer ideal for STEM projects.