I switched to Duracell Activair 312 Batts. I keep a back up set in the metal Phonac case ,sometimes for a couple of weeks. At least 2 sets were DOA when I went to use them. ??Ideas on this?
If they are touching, they’ll discharge even with the stickers on them.
Correct. The stickers do not cover the entire case, only the area with the air vents. You need to keep them in a non-conductive case.