On Friday, August 14, 2015 at 12:40:49 AM UTC-4, MNMikeW wrote:
On Thu, 13 Aug 2015 17:50:27 -0400, Stormin Mormon wrote:

What kind of device that won't let you get near it?

The AA battery was in a deep slot where you can't get a finger or brush
easily in there to clean the alkali, but you can get a liquid (such as
vinegar in there).

Depending on the size of the slot, you might be able to use BBs.

I do that when I need to get the inside of a jug clean and can't get a brush inside. Pour in a handful of BBs and a little water and dish detergent, and swirl it around.

The standard BBs are steel, you can get 300 or so for $1.