How To Clean Battery Corrosion. If youre lucky all you have to do is clean away the battery corrosion and everything will still work. The acid from these will help dissolve the corrosion from the device.
Once they are clean you can add a light coat of dielectric grease to all the mating surfaces and terminals to help prevent further oxidation and corrosion. Once the areas clear of any corrosion take a clean dry cloth and wipe the entire battery until its dry. White vinegar or lemon juice.
In more serious cases a relatively simple repair will do the job.
After the batteries are removed you will need to clean the corrosion from the device in question. White vinegar or lemon juice. Most household batteries contain base chemicals whether theyre single-use alkaline or rechargeable nickel-based batteries so acids will neutralize them. Surprisingly battery corrosion is a base on the pH scale.