Hope someone answers with a solution. I broke out a new white battery a few days ago and noticed how dingy my old one had gotten. Tried wiping it with alcohol and a few other things but it stayed about the same. I'm still using my originals and working them hard since about August with no drop in performance so I'd like to get it back to white. I guess oil and sweat from my hands is probably the culprit. I didn'dt realize it until I saw a new one lol. Kinda looks like a smoke stained white object. Just dingy.
I'm pretty sure a bleach/water solution would remove the ink/discoloring, but not sure if it would harm the surface of a white batt. If you try this, proceed at your own risk and don't be mad at me, please, for mentioning it.
Maybe when SI gets their own nitch we could have a recipe


