This is not about automobile battery corrosion, but rather the other batteries, e.g., AA and AAA. I've found that flashlights (torches) and other items that require small batteries develop corrosion at a much faster pace here in the tropics than was the case in, say, North America.
I've cleaned terminals and other areas with a light acid like vinegar or lemon juice, but that doesn't seem to last very long. Buying new batteries--good quality, name-brand batteries at that--easily enough corrects the defective battery, but the terminals or contacts in the device are not easy to replace.
I can't be the only one who has experienced this. Might there be a conductive grease of some sort, and if so, where could it be bought? Has anyone found a remedy for this problem?
Thanks for your help.