Corrosion Cleaning Fluid

[Kris Collins]

I am advised the the best cleaner for battery leakage is ammonia. Seems to reduce the residue that alcohol leaves behind. Anyone have different experience?

[Emmanuel, France]

Good idea... but reaction in contact with mylar?!

To fix battery contacts on HP-41 I use silver paint (for rear window on a car for instance).

[David Smith]

For the white powder leakage from batteries, I use white vinegar. For the green copper oxidation I use isopropyl alcohol and a contact cleaner made by Caig called a Gold Pen and/or their DeOxit pen.