The two slot 18650 cell spacer positions two 18650 li-ion cells side by side in one spacer unit covering a two cell parallel group or two adjacent series cells in a single plastic piece. Where a single spacer handles one cell at a time, the dual slot spacer halves the number of individual pieces needed for the same pack size, which speeds up assembly and reduces part count in larger pack. The dual slot battery spacer high quality plastic body clips firmly around both cell bodies, keeping them parallel and aligned for consistent nickel strip tab height across the entire spot weld surface.
The 2 slot spacer cell 40 x 20 x 8 mm body, exactly double the width of the single spacer maintains the same per cell spacing geometry so dual and single spacers interlock together in the same pack layout without gaps. The 18650 cell spacer interlocking edges connect to adjacent spacers in both directions, building out rows and columns of aligned cells without jigs. This cell spacer is working on 18650 battery pack construction and multi-cell assembly. Available on StemVolt.
Related Product:
Features:
- Body dimensions doubles single spacer width at same per cell geometry
- Interlocking edges connect to adjacent spacers in rows and columns
- Parallel clip retention holds both cells firmly during spot weld process
- Single and dual spacer compatible mix in same pack layout without gaps
Technical Specifications:
| Specification | Details |
|---|---|
| Product Type | Battery Spacer Holder |
| Supported Battery Type | 18650 Li-Ion Cell |
| Mounting Type | Dual Cell Mount |
| Material | High-Quality Plastic |
| Dimensions | 40 × 20 × 8mm |
Applications:
- Two slot 18650 cell spacer positions parallel cell pairs in 3S2P pack assembly
- 2 slot spacer cell aligns dual cell groups in high-capacity power bank pack
- 18650 battery spacer positions two cells per group in e-bike battery module
- Dual slot battery spacer organises parallel cell rows in custom spot weld pack
- Cell spacer positions two adjacent series cells in multi-row pack layout
Package Includes:
- 1 x Two Slot 18650 Cell Spacer














Aniket Joshi –
Product matched pictures
Piyush Mishra –
The two slot 18650 cell spacer kept battery alignment perfect during pack assembly.
Shouvik Mukhopadhyay –
Fast dispatch service
Bhnu Prakash Solanki –
Quality of the dual slot battery spacer exceeded expectations, and the protective packaging was excellent.
Koteshwar Rao –
Impressed with the finish
Angad Bedi –
Strong and precise fit