Looking for idea on how I can salvage my maglight 3D flashlight. Wouldn't turn on so took the batteries out...well, had to beat them out. Apparently the last one had leaked and embedded itself within the aluminum tube. Finally got it out, but corrosion is so bad, I can't get new batteries in there. Do I need to soak it is something? The corrosion is way down right next to the light bulb assembly. Been a good light and just updated it to the LED set up, sure would hate to have to trash it.