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Disolving burst battery corrosion?

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  • Disolving burst battery corrosion?

    I have an aluminum black anodized LED flashlight that uses a 3 AAA battery carrier. I had to put it in a vice and use channel locks to remove the endcap. The endcap cleaned right up but the 3 battery carrier is glued in to the tube with white corrosion. I thought if I were to immerse the bottom of the flashlight tube in some soluition, it might loosen up the battery carrier so I could get it out.

    Any suggestions as to what solution would be most effective?

  • #2
    Try a heavy baking soda/water mix. Or some CLR.

    On some of that type of flashlight, both ends unscrew leaving just the tube.
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    • #3
      Baking soda solution, dip it a few times, let it sit, dip a few more times and let it sit, then rinse with cold clear water, it should loosen the white powder up enough to get it out.

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      • #4
        You may get the battery carrier out after the baking soda water immersion but I'm pretty sure the +/- contacts are ruined, irreparable. The tiny spring contact on the negative contact is probably disintegrated. I've had this experience before. Plan to get a new flashlight.

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        • #5
          Go to harbor freight and get another free flashlight
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          • #6
            Originally posted by Sprig View Post
            You may get the battery carrier out after the baking soda water immersion but I'm pretty sure the +/- contacts are ruined, irreparable. The tiny spring contact on the negative contact is probably disintegrated. I've had this experience before. Plan to get a new flashlight.
            Might be Sprig, but I'd like to take a look see before I have to toss it.

            Thanks MT. I thought about that but I did not know if there was something more suitable.

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            • #7
              Originally posted by Scott Danforth View Post
              Go to harbor freight and get another free flashlight
              Funny but I just turned one down yesterday! My light is much better quality but the battery carriers might have been interchangable.

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              • #8
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                Got it. Was able to unscrew the end cap on the 3 battery cassette. That exposed the ends of the batteries which I was able to pry out, Then it was easy to pull the rest of the cassette out. Damage was minimal as I had stored the light upside down in the console. A bit of scraping the inside of the barrel with a pen knife, then scouring it with a 1" plumbing fitting brush. I then used a tooth brush to clean the cassette, then screwed it back together and put in new batteries. It now works like a champ..

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