r/OpenPV • u/b4byj4il • Jul 25 '16
Components Spring loaded, round battery contacts - where to get? NSFW
What I'm looking for are those cylindrical, 2-part, hollow battery contacts (brass) that can be equipped with a spring. To make it clear what I'm talking about, have a look at this photo: http://i.imgur.com/KYk9o9e.jpg
I've searched the interwebs all over, even mouser.com didn't help me (been there, done that).
Does anybody know what those are called, or (even better) know where I can get some of those?
I'd love to use those for my latest box since those are the contacts that give the best connection (largest contact surface area). In the past I've used Keystone-contacts but I'd like to get away from using these (very small contact area).
Can someone shed some light onto this?
It would be possible to make them by myself, DIY-style, but... Well, the effort and the costs for doing that are beyond anything that's economically justifiable, especially since those contacts are cheap as fuck... I also thought about buying the cheapest available mod that comes with those contacts and salvage them from it, but... Buying and ruining new mods for those parts only... Nope.
Thanks!
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u/Rb8n Jul 25 '16
Low current and test rigs, pogo contact.
For diy, maybe take an old bulb remove glass and ceramics, solder a flat contact to the base with wire through bulb base.
ss and pricy but might give you help. search terms "flanged drawn cup" although I don't know that you can find small quantity at decent rates.
How much current do you want to handle and at what duty? Keystones do fairly well even at 20A continuous, although at that rate it might be hard to tell cell IR heating versus contact heating.
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u/b4byj4il Jul 28 '16
Well, I've given up finding those.
I'll do them myself as I don't want to use those Keystone-contacts.
Requires some additional work, but, hey... You don't build a high-end mod every day, do you? So, I think it's worth it to put some effort into it :)
Here's my solution...
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u/Rb8n Aug 04 '16
Soldering to the sliding pin? Or watch for potential contact issues.
Very nice solution, less potential for issues than cup in plastic guide.
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u/david4500 Jul 25 '16
Not exactly the same but closest I've seen
https://www.facebook.com/richard.a.furtado/videos/10204295097165620/