Today I have by accident thrown a AAA battery into a bucket of water. I fished it out of the water immediately (within 20 seconds or so) and nothing notable had happened and the battery is still full according to a battery test device.
Cats Scratching Ears with Parasites. If this is not the issue, then it may be related to parasites alone. Check your cat's ears for signs of ticks, fleas, and mites. These parasites can cause obsessive scratching, as the cat makes a desperate effort to relieve pain and discomfort. If your cat is not allergic, try using natural tick or flea repellents (or mite repellent) if that seems to be the issue.
Scratching is normal cat behavior. It isn't done to destroy a favorite chair or to get even. Cats scratch to remove the dead husks from their claws, mark territory, and stretch their muscles. Cats are usually about 8 weeks old when they begin scratching. That's the ideal time to train kittens to use a scratching post and allow nail trims. Pet caregivers should not consider declawing a routine prevention for unwanted scratching.