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Batteries can burst and corrode the terminals in electronic items and toys when they haven't been in use for long periods of time. The caustic material inside the batteries can interfere with the ability to operate the toys, but with the right method, you can remove corrosion from the battery terminals and restore the toy's function. Remove the batteries from toys that won't be in use for long periods of time to prevent battery corrosion.
Mix 2 tbsp of baking soda in a bowl with enough water to make a paste. Stir the mixture with a spoon.
Remove the batteries from the terminal carefully while wearing a pair of gloves to protect your fingers from the caustic material.
Dip a cotton swab into the baking soda paste, and apply it to the terminals with the swab. Use a clean cotton swab and more paste as needed. Allow the paste to sit for five minutes.
Wipe the terminals with a damp cloth to remove any baking soda residue. Dry them with a clean cloth.
Allow the battery terminal to air dry completely before replacing the batteries.
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