Recently asked for information about who might have a list of EV parts. I
believe he was located in Branson, not Kansas City.
His business was "EVwerks" but I don't remember his name. Hope this helps
as I still need a parts list. Hope this helps.
Daniel Eyk
On Sat, Feb 28, 2026 at 12:33 AM DOOLEY PHILIP G JR via EV <
[email protected]> wrote:
> Pure copper apparently works in clean, dry environments. Lack of plating
> also saves weight, which is critical in aerospace. The small company I was
> engineer for had nothing but tin plated wire and terminals in its stock
> room. Some of the wiring on cars is tin plated as well as all of the wires
> that came with my Orion BMSs. It is harder to find in larger sizes, but
> Waytek wire stocks it. I would use nothing but tin plated wires and
> connections in my EV and battery projects. If unplated wire is used, the
> crimp compression pressure is much more critical to prevent oxidation from
> destroying the connection. The wire strands must be free of oxide to
> start. The pressure must be great enough to change the shape of all the
> strands so no oxygen can get in between them. Tin plated strands will form
> a long lasting low resistance crimp even with lower crimp pressure. It
> also solders much more easily. Be sure that the solder doesn't wick under
> the insulation or the wire will bend where the solder stops and break
> there. This is why crimps are much more reliable than solder when
> vibration is present. I had this happen several times where I tried to
> solder repairs in the wiring of my 1942 army truck.
> Phil Dooley
>
> On Friday, February 27, 2026 at 09:53:33 PM EST, Lee Hart via EV <
> [email protected]> wrote:
>
> paul dove via EV wrote:
> > 4.2.2.11 Tin
> > Tin and tin plating shall not be used in any applications unless the tin
> is alloyed with at least
> > five percent lead to prevent tin whisker growth. The presence of at
> least five percent lead shall
> > be verified by lot sampling.
> > The problem arises from variations and errors in the plating process,
> producing parts that have pure tin plating, despite certification that said
> they were not pure tin. Even if insulated and conformal coated sometimes
> whiskers would puncture to coating or insulation.
>
> Ah, but lead has basically been banned from new products. Everything now
> has to be RoHS compliant, which means no lead.
> <https://en.wikipedia.org/wiki/RoHS>.
>
> Pure tin is not that big a deal for things like terminals and
> connectors, but is a problem for printed circuit boards and soldering.
> The lead ban has forced an entirely new suite of alloys, fluxes, and
> soldering protocols.
>
> RoHS is "the law" in the EU. In the US, it's not federal law, but
> several states have adopted Europe's RoHS requirements (California, New
> York, New Jersey, Illinois, etc.) So in effect, even products sold in
> the US need to meet the RoHS standards, unless you don't sell in those
> states.
>
> --
> A nation of sheep will beget a government of wolves.
> -- Edward R Murrow
> --
> Lee Hart, 2521 19th St N, St. Cloud MN 56303, www.sunrise-ev.com
>
> --
> This email has been checked for viruses by Avast antivirus software.
> www.avast.com
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