18650 Battery Spacer Strips | Octagonal (2-7 cells)
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Linear 18650 battery spacers (1x2 to 1x7). Octagonal design creates channels for wire routing & cooling. DIY packs.
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- Printables
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- Electronics
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- Creative Commons — Attribution
BOM: Printed with ROSA3D High Speed PLA Dark Blue
Build professional custom Lithium-Ion battery packs with these precision spacers. This set focuses on linear strips (1 cell wide) ranging from 2 to 7 cells in length.
Smart Octagonal Design: Unlike standard round holders, these feature an octagonal (8-sided) profile for each cell. When arranged in a square grid, this geometry intentionally creates gaps between the cells.
Wire Routing: Provides clear channels to run BMS wires or balance leads between the batteries.
Airflow: Improves cooling by allowing air to circulate between cells.
The Set Includes:
1x2
1x3
1x4
1x5
1x6
1x7
Printing Instructions:
Material: ABS, ASA, or PETG are highly recommended for battery packs due to their heat resistance. PLA is only suitable for low-power applications where the batteries won't get hot.
Fit: Designed for a snug friction fit. Depending on your printer's flow rate, you might need to scale X/Y slightly (+/- 0.5%) for the perfect snap.