How to Fix an Electronic Keyboard That Has Corroded Batteries
- 1). Remove the batteries from the keyboard while wearing chemical-resistant gloves. If they are stuck, gently pry them out with a butter knife or other flat, thin object. Lever the batteries straight up, and avoid applying pressure to either side of the battery compartment. Place the batteries in a plastic bag for proper disposal.
- 2). Mix water and baking soda into a thick paste. Start with about a teaspoon of baking soda and add water a few drops at a time until it can be mixed into a paste with the consistency of cake frosting.
- 3). Apply the baking soda paste generously to any corroded areas using cotton swabs. Allow the paste to sit for 15 minutes.
- 4). Use a slightly moistened toothbrush to gently agitate the paste. Rinse the toothbrush often, and continue until the majority of the paste has been scrubbed away.
- 5). Examine the terminals for corrosion. Use a toothpick to scrape corrosion or paste from underneath the contact points if necessary.
- 6). Wipe away the remaining paste with a moist lint-free cloth. Insert new batteries only when the compartment has dried completely.