[Shop-talk] How to remove corroded batteries from an Aluminum case

[David C.]

I had this happen to a full sized 3 D cell maglite years ago.  I sent it 
back to Mag and they sent me a new one (free) along with a terse note to 
please try to change my batteries more often.

J.C. Hassall wrote:
> We found the long-AWOL Maglite, only to find that the alkaline batteries
> went TU a looooong time ago and are badly corroded into the case. I've
> picked away as much loose corrosion as possible, but those babies seem
> to be welded in there. What's a good way to extricate the batteries? I
> suspect it'll require a chemical solution, as I ran a couple of sheet
> metal screws into the rear battery case and tried to pull, no joy.
>
> tia
>
> jim