I can't find the cheap imitation tab welder I once made (I never
added a switch - touch and zap), but it seems to me I was burning
right through thin tabs with 24 or 30 x 4700uF from Queale, ie, .11
to .14 farads. (@25v) I think using the considerable number of
distributed "smaller" capacitors (connected to #8 wires) was an
advantage to get the sudden high current.
Craig
=====
>Craig: I did check, the specs on these things make them very unusual
>1.5-3 farads at 20v (the shitty walmart special car audio ones do
>not hit their capacitance ratings)
>
>Eric: Supercaps don't have the esr requirements for cap welding.
>
>On Sunday, 13 September 2015 00:07:46 UTC-7, Eric Davies wrote:
>
>On youtube, there is a brit guy walking you through the steps of
>making a supercapacitor at home. Buying a supercapacitor might be
>faster though :-).
>
>On Sat, Sep 12, 2015 at 10:35 PM, Chris Stone <> wrote:
>
>For those that don't know what it
>is: <
http://www.batteryspace.com/prod-specs/5997.htm>
http://www.batteryspace.com/prod-specs/5997.htm
>TL;DR: Dump a metric ton of amps(legit units) from a BIG capacitor
>into a join between two pieces of metal in 2-3 milliseconds to weld
>them together.
>
>I want one so that I can safely weld battery tabs onto lithium ion
>battery cells to assemble them into packs, but I was having
>difficulty locating a good capacitor.
>I finally found a source, but they aren't cheap. It looks like it's
>going to cost between $200 and $300 to build this thing.
>
>I can't justify that price by myself for the project I'm working on,
>is anyone else interested in getting this?
>
>
>
>
>--
>You received this message because you are subscribed to the Google
>Groups "makerspaceca" group.
>To unsubscribe from this group and stop receiving emails from it,
>send an email to
><mailto:
makerspaceca...@googlegroups.com>
makerspaceca...@googlegroups.com.
>For more options, visit
><
https://groups.google.com/d/optout>
https://groups.google.com/d/optout.
>--
>You received this message because you are subscribed to the Google
>Groups "makerspaceca" group.
>To unsubscribe from this group and stop receiving emails from it,
>send an email to
><mailto:
makerspaceca...@googlegroups.com>
makerspaceca...@googlegroups.com.
>For more options, visit
><
https://groups.google.com/d/optout>
https://groups.google.com/d/optout.