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#1
Old 05-04-2004, 08:42 AM
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Join Date: Jun 2002
Location: madtown
Posts: 377
What's a good way to get corroded batteries unstuck from a Maglight?

My Maglight quit working one day, so I opened up the back and the 2 batteries closest to the bulb are stuck with corrosion. I can't (or don't know how to) open up the bulb side of the light, or I'd just try to push them through from the other side. I've heard baking soda neutralizes battery acid, but will it unstick the batteries as well? Will it destroy the light in the process? Will the thing explode on me if I use the wrong stuff?

So, any ideas? It's a big 4 battery jobby and it has served me well until I neglected it. I thought they were supposed to be indestructable?!?! Should I write the company and see if they have a warranty or a guarantee or something?

Thanks!
#2
Old 05-04-2004, 08:48 AM
Charter Member
Join Date: Nov 2001
Posts: 12,684
Quote:
Originally Posted by born too late
So, any ideas? It's a big 4 battery jobby and it has served me well until I neglected it. I thought they were supposed to be indestructable?!?! Should I write the company and see if they have a warranty or a guarantee or something?

Thanks!
Dispose of it in the correct manner and buy a new one. I doubt that Maglight will give you a new one although the batter company might. However, while you haggle with them you don't have a light. Some things are just not worth it.
#3
Old 05-04-2004, 09:21 AM
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Join Date: Jun 2003
Location: Portlandia
Posts: 38,291
The flashlight company is not going to replace your light because you forgot to replace the batteries in a timely fashion. You wouldn't expect a smoke detector company to pay for your house after it burned down under the same conditions.

The light head does come off the maglite. It's designed to act as a base for the light so you can use it as a lamp. Just unscrew it. It's doubtful that the light will continue to work even if you can get the batteries out. I suspect the battery acid has corroded the electrical connections, but you might get lucky.
#4
Old 05-04-2004, 09:46 AM
ftg ftg is offline
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Join Date: Feb 2001
Location: Not the PNW :-(
Posts: 15,757
If it were light corrosion, some cleaning could extend the lifetime for a short while. But for that heavy of corrosion, Chefguy is right, it's a goner.
#5
Old 05-04-2004, 10:28 AM
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Join Date: Mar 1999
Location: IL, USA
Posts: 5,209
- - - I had this happen once with an aluminum-body flashlight (I left the batteries in so long that they began leaking inside) and even though they came out as normal, it continued to leak corroded acid/aluminum flakes from then on. No amount of cleaning with anything could seem to get it to stop, and the flakes ended up inside the front reflector and ate the aluminum off the plastic reflector in there in spots, too. I tried baking soda, as well as a couple different oil-lubricants but nothing worked. I ended up trashing the light and getting another.
~
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#6
Old 05-04-2004, 10:55 AM
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Join Date: Sep 1999
Location: Somewhere near Boston
Posts: 9,896
You could check the fine print on the batteries. Used to be that battery companies would offer to replace any piece of equipment damaged by leakage. However, given the hassle involved, and the relatively small cost of a Maglite, you might as well just pop down to the hardware store and shell out $15.00.
#7
Old 05-04-2004, 11:04 AM
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Join Date: Nov 1999
Location: In the IP address space
Posts: 2,781
I've had almost the same problem...

- only my batteries weren't corroded, but their labels apparently somehow "swell up" - anyhoo, they were stuck well and good in the light.

The solution is simple: Grab thee a piece of metal long enough to reach the batteries - I used an old Allen key, but whatever works - and a tube of superglue. Put a drop of superglue at the end of said piece of metal, hold it against battery base until glue sets, pull out with an even pull. Break the battery off once it's out, repeat once per battery.

I was inordinately proud to come up with that on my own
#8
Old 05-04-2004, 11:17 AM
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Join Date: Jul 1999
Location: Taint of creation
Posts: 33,150
Here's how someone else did it

Quote:
This *did* happen to me, not with a little one but with a big 6-D cell
monster, the kind the cops used to wrap around your head back before
they had to be PC. Anyway, I took a long drill bit and ran it a small
ways into the bottom then fished a lag screw into the hole then fiddled
until I got a long socket around it then ran the lag screw right into
the battery, then bent a piece of steel strap in a long "L" (a short
90 degree bend right at the end) such that I could just get it past
the head of the lag screw, then grabbed the protruding end of the long
steel strap in the vise and levered against the butt end of the
flashlight. I got the thing out and then used a rotary wire brush in
a drill motor to get most of the gunk out and then split a rod and
wound a sandpaper strip and cleaned it the rest of the way with that.

I got the flashlight as junk (free) and it has worked fine for over
a year now. By the way a Mag-Lite 6-D model costs nearly $50US .. GWE
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