Disolving burst battery corrosion?

[Boomyal]

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?

 

[GA_Boater]

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

On some of that type of flashlight, both ends unscrew leaving just the tube.

 

[MTboatguy]

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.

 

[Sprig]

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.

 

[Scott Danforth]

Go to harbor freight and get another free flashlight

 

[Boomyal]

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.

 

[Boomyal]

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.

 

[Boomyal]

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..