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How do you remove battery corrosion from a flashlight

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Well, you already got the answers I wanted to suggest, but I can only add that, believe it or not, Coca Cola eats the rust and you can use it for removing battery corrosion, but only if you are sure it won't enter somewhwere where it's not supposed to be. My suggestion? If you think that trying to remove the corrosion from an old flashlight will take too much time, and it will probably be glitchy afterwards, buy a new one and regularly get the batteries out when not using it. Here is an article that talks about some of the top flashlight models on the market. You might find it useful, and beside this one, there are other ones on this topic you can use as well. Check it out here: http://hikingmastery.com/top-pick/best-tactical-flashlight.html

Posted on Feb 22, 2017

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Scrape it out

Posted on Jan 03, 2017

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If you are using alkaline batteries, use a little white vinegar on a cloth, or q-tip and wipe the area with it. You may need to do it a few times. If the corrosion is extensive, there may be damage already done. If it is not Alkaline batteries, try using baking soda in water, instead of vinegar.

Posted on Jan 03, 2017

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Posted on Jan 02, 2017

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1 Answer

Have large metal flashlight with D batteries inside am unable to open end to replace batteries. Tried wd40 and it did not work


A possibility that the batteries have leaked a caused a galvanic corrosive issue, binding or fusing the end cap. See the manufactures instructions for removing and installing batteries.

Aug 25, 2011 | MagLite Mag-Lite& Flashlight

1 Answer

Won't light with new batteries and bulb


look where the batteries go and make sure there is no crud or corrosion in the housing or on the spring in the end cap .if you remove the bulb and check the voltage using a multimeter ,if its under 3 volts you have a bad connection somewhere in the housing.

Nov 28, 2010 | MagLite Mag Lite® 2x 'd' Battery ...

1 Answer

1 "D" cell battery is corroded and stuck inside.


Here are the instructions:
http://www.maglite.com/pdf/CustServ/CD_switch_repair_8_0410212004718132.pdf

If you remove the tail cap (the part that you unscrew to put the batteries in the flashlight) and the head assembly (the part that has the light bulb) you should be able to push the battery out. Wear some of those disposable latex gloves as that chemical that comes out of the batteries is very corrosive. Or at least wash your hands really well before touching anything, especially your eyes. Good luck.

Nov 16, 2010 | MagLite Mag-Lite& Flashlight

1 Answer

I have a 6 d cell maglite. when i removed the end cap 3 batteries came out number four is stuck in the maglite. how can i get it out?


Not sounding good. I have had the problem in the past with Mag lights and though they are good, I always seem to have battery corrosion problems. What I have done is to get a non-metalic rod, wooden doweling has worked for me, carve a bit of a blade at the end, sort of like a long screw driver and work it into and between the batter and flashlight case. Not so hard as to deform the flashlight, but to try and break the seal between the corroded (I assume) battery and the case. Spray in some WD40 and work the dowel in and around the battery. Stop on occasion and tap the open end of the flashlight on a heavy rag laid atop a piece of wood to try and jar the battery loose. By repeating this process I have been able to remove corroded batteries, but not necessarily save the flashlight, as some times the on/off switch is corroded as well. Once you get the batteries out you may be able to clean the inside with some abrasive (steel wool?) to clean out the corrosion, but as I said, you may not be able to save the light. Best of luck!

Aug 29, 2010 | MagLite Mag-Lite& Flashlight

1 Answer

Camera will not turn on when hitting on/off button. Have replaced the battery.


The most likely problem is slight corrosion on the battery contacts. This would also be the easiest (and least expensive) to fix. Use a flashlight and very closely examine the battery contacts. You don't need much corrosion to prevent a good contact. Scrape any corrosion with a sharp edge. The corrosion is like rust and will not just wipe off. You need to expose the fresh metal for contact. Wipe with rubbing alcohol to remove loose corrosion. Replace the batteries. Begin capturing memories!

Aug 07, 2010 | Nikon COOLPIX P80 Digital Camera

1 Answer

My Camera will not power on. Bought a new battery and still will not power on. Sounds like the switch is working. Any ideas


The most likely problem is slight corrosion on the battery contacts. This would also be the easiest (and least expensive) to fix. Use a flashlight and very closely examine the battery contacts. You don't need much corrosion to prevent a good contact. Scrape any corrosion with a sharp edge. The corrosion is like rust and will not just wipe off. You need to expose the fresh metal for contact. Wipe with rubbing alcohol to remove loose corrosion. Replace the batteries. Begin capturing memories!

Aug 07, 2010 | Sony Cyber-shot DSC-W90 Digital Camera

1 Answer

Batteries got corroded in the flashlight now I can't get it out. How can I get the battery out?


If you can remove both ends of the flashlight, find a piece of pipe that is slightly smaller in diameter than the inside of your flashlight, hold the flashlight body in one hand and the pipe in the other. place the pipe on top of the batteries then strike the pipe on a heavy hard surface that you are not worried about damaging. The blows should dislodge the batteries. Clean the corrosion thoroghly before putting new batteries in

Jun 14, 2010 | MagLite Mag-Lite& Flashlight

3 Answers

Won't power up even with new batteries


The same thing happened to mine- over Thanksgiving! I did 2 things and one of the fixed it, but I don't know which one. The first thing I did was to take out the little cr1220 battery (I did this just to look at it). The next thing I did was to wipe the AA battery contacts (top and bottom) with a Qtip dipped in rubbing alcohol. I out in new AA batteries, and now my camera works!
Good luck!

Dec 02, 2009 | Canon PowerShot A470 Digital Camera

3 Answers

Seems I have 2 of 3 batteries corroded in my Maglite and


I would purchase a spray can of electrical corrosion cleaner and spray some down the tube and let it dissolve some of the corrosion that has gotten the batteries stuck. The stuff I have is called BatteryKleen. Hope this helped and best wishes.

Aug 05, 2009 | Camping, Backpacking & Hiking

3 Answers

How to get a battery out of a maglite.


both ends of your maglite unscrew.  Tap the stuck battery out with a piece of wood and spray in a bit of WD 40 

Apr 05, 2009 | MagLite Mag-Lite& Largehead Flashlight

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