Is this light salvageable?

[USCScubaboy]

So I lent one of my Hollis 3W LED torches to another diver during a night dive. I then rinsed the outside right after but didn't think to check the inside. This was the result after about a week after I had removed the batteries, hosed out the inside, and let it dry. Can this light be salvaged and what would I need to do to save it?

 

[Jax]

'Elephino.

I can tell you what the gov't did after Katrina.

Scrub everything with distilled water and a copper brush. Get rid of the the rust you can. Rinse with distilled water, except the batteries. Do they take a recharge, if they are rechargable? if so, they are okay, for now, but don't depend on it with your life.

Wrap the stuff in a towel, and shake it, to get rid of the excess water. Put it in a pan, and put it in a warm oven - not more than 150 if you can. Turn the oven off. Give it a good half hour.

Afterwords, put it together, being careful to silicone the o-rings and such. I like to lube the threads, too; some people say it breaks the connectivity.

If it works, make it a backup like until it proves itself reliable. If not, you have a good flashlight.


You would be amazed what has been salvaged from flooding.

 

[Mayor]

I'm no expert but I cleaned some backup lights with vinegar and it works very well. Of course rinse well and dry before testing.

 

[USCScubaboy]

If it works, make it a backup like until it proves itself reliable. If not, you have a good flashlight.

Ouch.

Thanks for the tips. I'll post an update once I give it a good cleaning.

 

[mrfixitchapman]

I know that you wouldn't believe how many things I have reclaimed using electrolytic rust removal. Hell, I can't believe it. This is cheap, easy and nondestructive. BTW, I get washing soda at the supermarket in the clothes-washing detergent aisle.

Stovebolt Tech Tip -- Antique Chevy / GMC Truck Restoration Help

DC

 

[DazedAndConfuzed]

The LEDs are usually driven by electronic circuitry. Using harsh chemicals on things like capacitors might just mean the end of them. same if there is dedicated IC circuitry.

 

[lucca brassi]

know that you wouldn't believe how many things I have reclaimed using electrolytic rust removal. Hell, I can't believe it. This is cheap, easy and nondestructive. BTW, I get washing soda at the supermarket in the clothes-washing detergent aisle.

Stovebolt Tech Tip -- Antique Chevy / GMC Truck Restoration Help

this is only so called ''passivation'' it stops electrolytic process in metals after cleaning . Passivation is for diferent metalls different , so you must light disassembly on parts by metalls and restore each part alone . It won't returns etched material back .

Battery holder is best to buy new one (because increased contact resistance)

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