Here's the ultimate in battery tubes for your mods. The Varitube 18650 Spring loaded tube. Often you purchase or make a nice wood shell and then your forced to make due without a quality solution for your battery. This tube solves your problems!
100% Brass Tube is chrome plated to prevent oxidation and break down. Spring loaded for constant pressure and superior electrical connectivity. Why short cut to most important aspect to your build?
- Solid Brass tube and finished in chrome plating
- Solid Brass top floating center pin is also chrome plated
- Top pin is spring loaded to provide constant pressure and maintain perfect connection. It self-adjusts to the minor differences in battery lengths and assures a solid connection
- Electrical isolation is accomplished via PEEK insulator on top\
- Spring carries no load
- Positive center pin is also manually adjustable to set pressure/clearance of the spring depending on batteries.
- Ground lug included and accomplished via installation into top cap. Solder negative/ground connection directly to the lug.
- Positive center pin bored to accept your wire for direct soldering
- Assembled tube length is 77.3mm
- Center Pin and Ground lug add 1.5mm to overall length
- Center pin needs room to float up during battery installation - 1mm-3mm
- Major OD at battery end is 21.6mm at the cap ends
- Major OD at Top Cap is 22.9mm
- ID is 19mm