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Thread: How do you get a stuck battery out of a mini-mag?

  1. #1
    Unenlightened
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    Question How do you get a stuck battery out of a mini-mag?

    I just picked up an old mini-mag at my folk's house and the batteries had leaked. How do you get the stuck battery out of it without damaging the body? The battery is stuck by the head and I have tried banging the body, and using a screwdriver to unstick it.

  2. #2
    Flashaholic* TinderBox (UK)'s Avatar
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    Default Re: How do you get a stuck battery out of a mini-mag?

    have you tried spraying some WD40 inside, to see if it will loosen the battery.

    regards.

    John.
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  3. #3

    Default Re: How do you get a stuck battery out of a mini-mag?

    Throw it away and buy a Fenix L2P that will NEVER fail on you!

    Hows that guys?

  4. #4
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    Default Re: How do you get a stuck battery out of a mini-mag?

    Thanks for the quick responses. I'll try the WD40 first and if that doesn't work, I may keep the usable parts for spares, then buy something new.

  5. #5
    Flashaholic* Pydpiper's Avatar
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    Default Re: How do you get a stuck battery out of a mini-mag?

    If you have to pitch it, you may want to consider the new Mini Mag 3AA LED, it seems to be getting a whole lot of positive talk for an inexpensive and easy to acquire light.
    Just one more light and my collection is complete! Ok, maybe two..

  6. #6

    Default Re: How do you get a stuck battery out of a mini-mag?

    I had that exact situation with a 4D MagLite, It spent a winter in the trunk of a vehicle, unused.

    I beat it on the ground and eventually they came out.

    But the body was ruined.

    So was the insides.

    So was the focusing.

    I am going to do a Nite Ize conversion, since it costs so little

  7. #7
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    Default Re: How do you get a stuck battery out of a mini-mag?

    Get some 99% pure pork lard and heat it to 178 F and then pour it all around the battery and wait for it to run down between the battery and the body. This should release the batteries grip on the tube. Oh, and welcome to CPF.
    Last edited by fnmag; 10-12-2006 at 08:42 PM.

  8. #8
    Flashaholic* MarNav1's Avatar
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    Default Re: How do you get a stuck battery out of a mini-mag?

    You can drill it out if your careful. Use a 1/8 bit and take your time, drill several holes
    until most of the center is loose and then use a punch or screwdriver for the rest.
    Shouldn't take too long, remember to mark your drill bit so you don't drill to far. I've
    done this several times and it usually work's well, just be patient and take your time.
    If it doesn't work a new LED minimag............
    Reality is usually scoffed at and illusion is usually king. But in the battle for survival of western civilization it will be reality and not illusion or delusion that determines what the future will bring.

  9. #9
    Flashaholic* Somy Nex's Avatar
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    Default Re: How do you get a stuck battery out of a mini-mag?

    chances are the inside will be ruined if the acid's gone out enough to jam the batteries in. same thing happened before to me. even if you get it out, you'll find patches on the inside corroded, making it hard to insert new batteries even if you got the old ones out.
    Somy Nex

  10. #10
    Flashaholic The Shadow's Avatar
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    Default Re: How do you get a stuck battery out of a mini-mag?

    I had the same problem with a Mini-Mag five years ago. I contacted Maglite via e-mail, and they informed me that they have contracts with Duracell, Eveready, and Ray-o-Vac and would warranty the light if one of those brands caused the damage. I mailed it back to Maglite and they shipped me a new one at no charge. If you can identify the battery, Maglite should take care of it for you.
    Who knows...

  11. #11

    Default Re: How do you get a stuck battery out of a mini-mag?

    I learned a lesson from my experience with leaking 4D:

    1) Do not leave Lights in your vehicle for the entire winter

    2) Do not leave cells in any flashlight for a long time, especially if you don't use it. Take them out.

    3) If they leak and stay there for a long time, especially doing the freeze/defrost cycles, it's probably ruined, although you can beat on the
    ground and get the cells out. I ruined the thread doing that. Then it's truly a lite you can toss in the back of the pickup truck or give someone truly desperate.

    4) All brands leak under these misused conditions. All sizes leak too.

  12. #12
    Flashaholic* EngrPaul's Avatar
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    Default Re: How do you get a stuck battery out of a mini-mag?

    Well I guess sucking it out would be a bad idea... How about drilling a hole in it and using a corkscrew?

  13. #13
    Thread Killer Illum's Avatar
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    Wink Re: How do you get a stuck battery out of a mini-mag?

    unscrew the tailcap, take off the bezel, temporarily remove the "do not remove cap under the bulb....then push down with something blunt on the inner plastic [bulb holder]

  14. #14

    Default Re: How do you get a stuck battery out of a mini-mag?

    Quote Originally Posted by york2
    I just picked up an old mini-mag at my folk's house and the batteries had leaked. How do you get the stuck battery out of it without damaging the body? The battery is stuck by the head and I have tried banging the body, and using a screwdriver to unstick it.
    I once got a freebie Minimag with leaked batteries stuck inside. I removed the plastic thing on the top that says "DO NOT REMOVE". Soaked the thing in a bucket of warm water, then I punched out the batteries with a dowel.

    I got the batteries out, but I couldn't get the plastic parts from the head back together correctly so I threw it out. A new Minimag is about $10, so anymore effort is not worthwhile.

    Throw it out and get a new Minimag or pay some more and get a Minimag LED. The 2AA if you want something closer in size to original Minimag. The 3AA if you want something REALLY bright (for someone used to regular Minimag...), but awekwardly long.

  15. #15
    Flashaholic* Manzerick's Avatar
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    Default Re: How do you get a stuck battery out of a mini-mag?

    You beat me to the punch... I was going to say "Scrap it and buy a light that is worth the effort" LOL



    Quote Originally Posted by spacetroll
    Throw it away and buy a Fenix L2P that will NEVER fail on you!

    Hows that guys?

  16. #16

    Default Re: How do you get a stuck battery out of a mini-mag?

    Quote Originally Posted by spacetroll
    Throw it away and buy a Fenix L2P that will NEVER fail on you!

    Hows that guys?
    If he wants to pay $45 shipped for an L2T or an L2P when he can get a 3AA Mini MagLED for $20 or 2AA MiniMag LED for $24.

  17. #17
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    Default Re: How do you get a stuck battery out of a mini-mag?

    Saw off the front end of the light, salvage the bezel, reflector, switch and tailcap for spare parts, throw away the rest, then buy a new MM.

    You can try soaking and pushing out the internals with a dowel, but if that doesn't work then it isn't worth the effort to salvage it when you consider how inexpensive a new one is.
    Pel. M6 LED, SL TL-2 LED, TL-3 Xenon, Scorpion, Inova X5, SharperImage Luxeon, Gerber Infinity, Petzl Tikka, 2C Mag 3x123 KPR112, 2D Mag 7xAA KPR118, Nuwai QIII, TM115, TM311, 3rd_shift Luxeon 3C Magmod, Solitaire Luxeon, MiniMag MJLED,Mag85, MagLed 2D.

  18. #18
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    Default

    put it into the freezer over night. If lucky enough, this might press the batt a bit and/or loosen the mess inside.
    Let it come to temperature (or better heat it with a hair dryer).
    Try to get it out now (beat it into a not too hard surface like wood not to damage the body or, finally, remove the "do not remove" plastic and try to push out)

    the idea of th 2aa-mag-led has been mentionned, but I would also get a fenix (I have both Magleds, and dont like them).
    L2T / L2S if You want 2 levels (imho everything else than 2 levels at least makes no sense), or L2P and do the "head mod" for YOUR version of the low level

  19. #19
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    Default Re: How do you get a stuck battery out of a mini-mag?

    I had the same problem. I found a long wood screw that could reach the battery (an eye bolt would work even better) and then drilled a hole in the end of the battery to screw into. Using a pair of vice grips on the screw, I was able to twist the battery out of the flashlight. Actually, I twisted the battery out of it's wrapper, as it was the wrapping that was stuck to the inside of the flashlight. After thoroughly cleaning the inside of the flashlight, I found that new batteries would not fit as the inside wall was slightly corroded, so I used a dremel to grind the surface back down.

    Good luck!

  20. #20
    Flashaholic* download's Avatar
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    Default Re: How do you get a stuck battery out of a mini-mag?

    It happened to me so many years ago.
    I pushed a tight fit battery into minimag, it stuck.
    A permanent marker pen "tail" glued the end of battery with crazy AA glue.
    Then turn the marker pen slowly, not pull. It worked in this case.


  21. #21

    Default Re: How do you get a stuck battery out of a mini-mag?

    Originally Posted by spacetroll
    Throw it away and buy a Fenix L2P that will NEVER fail on you!

    Hows that guys?
    How does the brand of the flashlight have anything to do with batteries leaking? Just because its a Fenix does that mean that alkaline batteries won't leak in it? Alkaline batteries will leak and bulge no matter what brand of flashlight they are in. It says right there in the Mag's instructions to not leave batteries in the light for extended periods of time. If its necessary to leave the batteries in the light it says to inspect the light every 3 months for signs of leakage.
    Surefire 9N, SL TT 2L, SL Scorpion, SL TL2 LED, PT Tec40, PTQuest, and a few more.

  22. #22
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    Default How to clean Mini Maglite with leaked battery shXt inside?

    I have a Mini Maglite that had a AA leak inside. The inside is coated with something. I tried to wash it with water and wipe the inside with Q-tips. But the gunk is hard.

    Any suggestions on how to clean the leaked battery shXt out?
    EZCR2;D10;6PL;FENIX T1,P3D,P2D,L2D,L1D,L0D,LD10;PTApex;ZebraL H30;RR K2 3AA hlight;RR Nightfire 2C;Xponent 1xCR2 hlight;MyoXP;Xponent 4AA hlight;6AA & 9AA M*g Hotwire;2D MagLED Lux;4D MagLED NiteIze;3D MagLED Rebel

  23. #23
    Flashaholic* VegasF6's Avatar
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    Default Re: How to clean Mini Maglite with leaked battery shXt inside?

    You are gonna have a heck of a time with that
    I can't remember, can you remove the head and tail cap on it to just get down to a battery tube? I had a larger mag with batteries stuck in it and after several days work I finally got them out. I used spray on battery cleaner that is sold at auto parts stores to neutralize battery acid on car batteries. Soften it up real good and push a wad of steel wool through with a pencil or something. Then I cleaned it with soap and water and blew it out with compressed air.

  24. #24
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    Default Re: How to clean Mini Maglite with leaked battery shXt inside?

    I was able to disassemble the light. So I have the bare barrel. I may have to go get a steel wool bottle cleaner.
    EZCR2;D10;6PL;FENIX T1,P3D,P2D,L2D,L1D,L0D,LD10;PTApex;ZebraL H30;RR K2 3AA hlight;RR Nightfire 2C;Xponent 1xCR2 hlight;MyoXP;Xponent 4AA hlight;6AA & 9AA M*g Hotwire;2D MagLED Lux;4D MagLED NiteIze;3D MagLED Rebel

  25. #25
    *Flashaholic* greenLED's Avatar
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    Default Re: How to clean Mini Maglite with leaked battery shXt inside?

    Quote Originally Posted by ltiu View Post
    Any suggestions on how to clean the leaked battery shXt out?
    Wrap some sandpaper around a pencil and rub the gunk away. At least that's how I do it.

  26. #26
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    Default Re: How to clean Mini Maglite with leaked battery shXt inside?

    Contact the battery manufacturer and tell them what happened. They'll have you send the light back with the batteries and they'll repair, replace, or reimburse you.

  27. #27
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    Default Re: How to clean Mini Maglite with leaked battery shXt inside?

    Quote Originally Posted by kitelights View Post
    Contact the battery manufacturer and tell them what happened. They'll have you send the light back with the batteries and they'll repair, replace, or reimburse you.
    Just curious:

    If I intentionally drained the batteries till they are dead, then they leaked, is that still covered under the battery manufacturer's warranty?

    I notice that if you have two identical batteries (both brand new, same voltage, same brand, same type) in a 2x AA light. Then drain these till they are dead, one of the two will hit 0v sooner than the other. I have seen this time and time again, although I only got leaked on this one time.
    EZCR2;D10;6PL;FENIX T1,P3D,P2D,L2D,L1D,L0D,LD10;PTApex;ZebraL H30;RR K2 3AA hlight;RR Nightfire 2C;Xponent 1xCR2 hlight;MyoXP;Xponent 4AA hlight;6AA & 9AA M*g Hotwire;2D MagLED Lux;4D MagLED NiteIze;3D MagLED Rebel

  28. #28
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    Default Re: How to clean Mini Maglite with leaked battery shXt inside?

    Quote Originally Posted by VegasF6 View Post
    You are gonna have a heck of a time with that
    I can't remember, can you remove the head and tail cap on it to just get down to a battery tube? I had a larger mag with batteries stuck in it and after several days work I finally got them out. I used spray on battery cleaner that is sold at auto parts stores to neutralize battery acid on car batteries. Soften it up real good and push a wad of steel wool through with a pencil or something. Then I cleaned it with soap and water and blew it out with compressed air.
    Alkaline batteries don't contain acid (hence the name "alkaline"). You'd have been better off using vinegar to neutralize any leakage from them.

    Once alkaline battery leakage is dry, it's pretty much no longer reactive anyway, as it has reacts with carbon dioxide in the air and turned into potassium carbonate, rather than potassium hydroxide.

  29. #29
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    Default Re: How to clean Mini Maglite with leaked battery shXt inside?

    Quote Originally Posted by ltiu View Post
    Just curious:

    If I intentionally drained the batteries till they are dead, then they leaked, is that still covered under the battery manufacturer's warranty?

    I notice that if you have two identical batteries (both brand new, same voltage, same brand, same type) in a 2x AA light. Then drain these till they are dead, one of the two will hit 0v sooner than the other. I have seen this time and time again, although I only got leaked on this one time.
    I don't think that there's a way for the manufacturer to determine that, so they probably wouldn't know the difference. Better said, there are many less than knowledgeable consumers that drain cells both knowingly and unknowingly and I believe that they would be covered.

    I'm curious as to why you would knowingly subject your lights to conditions that you know are likely to damage them, in which case I would say, "Let your conscience be your guide."

    The warranty is there to instill confidence in the quality of Brand X cells. If the cells fail and damage your appliance, they will repair or replace it. If you knowingly abuse cells and/or push them past their known limits, then IMO, it's a scam to expect the manufacturer to pay for your mistake (or ignorance).

  30. #30
    Flashaholic* VegasF6's Avatar
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    Default Re: How to clean Mini Maglite with leaked battery shXt inside?

    Quote Originally Posted by MorePower View Post
    Alkaline batteries don't contain acid (hence the name "alkaline"). You'd have been better off using vinegar to neutralize any leakage from them.

    Once alkaline battery leakage is dry, it's pretty much no longer reactive anyway, as it has reacts with carbon dioxide in the air and turned into potassium carbonate, rather than potassium hydroxide.
    Huh, you learn something new everyday. But it worked. I drove a 3 inch gold deck screw into the bottom of the batt and pulled it out. The spray softened up the heat shrink and the top and bottom caps of the batteries pulled apart. I would hit it in the morning, and get one out when I got home from work, then do another one the next day.

    It wasn't me that left them in there by the way

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