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Solution to WOO pin oxidation?

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alricrahl
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Solution to WOO pin oxidation?

Postby alricrahl » Wed Jun 15, 2022 6:20 pm

I have been seeing the WOO devices of people from the kite beach getting black spots on the yellow round pins.

This oxidation eventually spreads and makes the whole yellow conductor black.

If both get completely black, the device stops charging/working.

Is there a way to scratch this out without damaging the pin? A spray to apply perhaps and wipe it?

At first, just rubbing with the fingernails or a cloth worked to remove the black stains, but now it's persistent and I don't want to have a device unusable due to this small problem when the casing is just fine and I've been immediately washing it with water after a session, so it never stayed with salty water.

Any tips?

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Re: Solution to WOO pin oxidation?

Postby SolarSet » Thu Jun 16, 2022 8:54 am

I soldered some tin on pins using soldering iron. Woo should have hermetic case that charges wirelessly like plenty devices these days. They wouldn’t even have to include any charger as many people already have them

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Re: Solution to WOO pin oxidation?

Postby flying doctor » Thu Jun 16, 2022 10:25 am

There is a recent topic regarding corrosion: viewtopic.php?f=1&t=2413182

But good to have a separate thread on how to battle it.
I agree they should switch to wireless charging to really waterproof the device better.
As of now WOO support claims that any corrosion is because of user error whilst you seem to take good care of the device just like I did.

If you use the case I suspect it promotes corrosion as it isn't really waterproof and can act like a greenhouse. In the other thread there are some more suggestions
I'm using surfr now, also testing their apple watch beta which seems to be accurate (haven't had any solid wind days to be sure).

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Re: Solution to WOO pin oxidation?

Postby alricrahl » Sun Jun 19, 2022 10:28 am

SolarSet wrote:
Thu Jun 16, 2022 8:54 am
I soldered some tin on pins using soldering iron. Woo should have hermetic case that charges wirelessly like plenty devices these days. They wouldn’t even have to include any charger as many people already have them
Thanks for this tip.

Do you do the soldering right away or after it oxidized a little bit? Also, does that protect it you find from your sessions so far?

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Re: Solution to WOO pin oxidation?

Postby Guttorm » Sun Jun 19, 2022 11:56 pm

Just use a coin or a key to scratch it, takes no time to make it charge again, I do it 2 – 3 times pr year .
Woo 3 still working after 5 years 🤙

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Re: Solution to WOO pin oxidation?

Postby SolarSet » Mon Jun 20, 2022 6:55 am

alricrahl wrote:
Sun Jun 19, 2022 10:28 am
SolarSet wrote:
Thu Jun 16, 2022 8:54 am
I soldered some tin on pins using soldering iron. Woo should have hermetic case that charges wirelessly like plenty devices these days. They wouldn’t even have to include any charger as many people already have them
Thanks for this tip.

Do you do the soldering right away or after it oxidized a little bit? Also, does that protect it you find from your sessions so far?
I did it once one pin got oxidized but I did it on both just in case.

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Re: Solution to WOO pin oxidation?

Postby daspi » Thu Jun 23, 2022 1:28 pm

alricrahl wrote:
Sun Jun 19, 2022 10:28 am
SolarSet wrote:
Thu Jun 16, 2022 8:54 am
I soldered some tin on pins using soldering iron. Woo should have hermetic case that charges wirelessly like plenty devices these days. They wouldn’t even have to include any charger as many people already have them
Thanks for this tip.

Do you do the soldering right away or after it oxidized a little bit? Also, does that protect it you find from your sessions so far?
If you try to solder be careful to not overheat the pins. It would melt the plastic next to it and cause a leak. A leak will be the death of your Woo.

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Re: Solution to WOO pin oxidation?

Postby Matt_TYRCZ » Thu Jun 23, 2022 9:25 pm

I use 800 grit sand paper to brush it off , works good

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Re: Solution to WOO pin oxidation?

Postby galewarning » Fri Jun 24, 2022 2:42 pm

Fiberglass brushes would work great, as long as you don't over-scrub and/or breath the ground-up fiber dust. Instead of Amazon, maybe try your local electronics supply first, if you have that option.
Screenshot 2022-06-24 073716.png

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Re: Solution to WOO pin oxidation?

Postby sergei Scotland » Mon Jun 27, 2022 1:34 am

Matt_TYRCZ wrote:
Thu Jun 23, 2022 9:25 pm
I use 800 grit sand paper to brush it off , works good
Not a good idea.
1.Most contacts have a very thin layer of gold on the base of copper. Once gold is removed copper will be easily corroded and you will need to use sand paper every week. You would have ruined it,. To clean gold contacts from any residue little rubbing with a little isopropyl alcohol on a piece of cotton textile is the usual procedure recommended for any electronics.

2.Obviously if salty water dried on contacts and very fine salt crystals formed - you do not want to rub the gold with salt as this would remove gold as efficiently as sand paper does. Hence you use clean water rinse to dissolve and remove these.
Then do (1) above.

3. I know this as was doing it a lot every 6 months with old 90s room size computers. Which I serviced for a few years. They had thousands of contacts like this :D computers kept going this way.
And I my back ground is an electronics engineer.
And I did make the same mistake myself and ruined an important piece of equipment once. So learned it the hard way :-?

4.Obviously if your Woo contacts are already ruined by sand paper or coins or by any other means - you would have to use sandpaper again. But you would probably use 5000 or 3000 much finer grit to make them last, I would suggest.

5.If you dont have isopropyl alchogol you can buy paper injection wipes with it from a Pharmacy. Or use distilled vodka like Absolute or similar.
You just need to remove residue without removing any metal gold.

6.BTW isopropyl alcohol is poison. Do it in the open air and ideally wear rubber gloves. Do not breath in if you can. Wash your hands after in any case.
Hope this helps


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