Are size 13 and P13 same, and or interchangeable? I use size 13 for my ReSound hearing aid; will need to get a replacement soon and was looking for them at a nearby store but I was told they don’t have the exact size 13 but a P13 which according to them, is the same.
To be more specific, I use Widex size 13 batteries. The one they showed me is PowerOne size P13.
Any advice please!!