18350 through the wash and soaked

desmobob

Enlightened
Joined
Sep 9, 2013
Messages
328
Location
Upstate NY - Lake George region
Can it be safely saved?

I just washed my hunting jacket, which has a ripped pocket lining, and my Thrunite T1 slipped through and was not found when checking the pockets before washing. It came out full of water (which surprised me as I've washed other lights accidentally and they didn't).

The Thrunite-branded 1100mAh 18350 reads fully charged (4.20V, which I don't think it was before washing it) and won't operate the light, which was dried, the board sprayed with Deoxit, and works fine with other batteries.

I currently have it in a small sealed jar full of rice. Is there a chance it will recover or should I dispose of it?
 

aznsx

Enlightened
CPF Supporter
Joined
Apr 24, 2015
Messages
314
Location
Phoenix, AZ USA
Can it be safely saved?

I just washed my hunting jacket, which has a ripped pocket lining, and my Thrunite T1 slipped through and was not found when checking the pockets before washing. It came out full of water (which surprised me as I've washed other lights accidentally and they didn't).

The Thrunite-branded 1100mAh 18350 reads fully charged (4.20V, which I don't think it was before washing it) and won't operate the light, which was dried, the board sprayed with Deoxit, and works fine with other batteries.

I currently have it in a small sealed jar full of rice. Is there a chance it will recover or should I dispose of it?

I'd trash that cell immediately without a second thought. The risk:reward thing just isn't there. JMHO, ICBW, and all that rot.
 

pnwoutdoors

Newly Enlightened
Joined
Sep 14, 2008
Messages
107
Location
USA
I'm also in the "bad risk/reward" camp. If the worst thing that "bad" Li-Ion cells exhibited were getting warm or something benign, then that might be something. But these things explode and catch fire when having troubles. Not worth the risk, IMO.
 

desmobob

Enlightened
Joined
Sep 9, 2013
Messages
328
Location
Upstate NY - Lake George region
Rice is not a desiccant!!!
I fill a small jar with rice, crack the lid, and heat it in the toaster oven for a half-hour or so at low heat. Then I put in whatever I'm trying to dry out and seal it up. It seems to work very well.

The funny thing is, I always save the silica desiccant packs that come in various products... I could fill the jar with several of them vs. the rice but never remember to use them!

But I wonder... why does adding some rice to the salt shaker keep the salt from clumping solid with moisture in the humid summer weather? I always thought it was because the rice absorbed the moisture faster than the salt. Hmm...
 
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