Discover the ultimate lifehack to check if your alkaline batteries are dead or alive—just drop them on a flat surface! A bouncing battery? It’s toast. A solid thud? Still good to go. This simple trick works because chemical changes in dead batteries make them more elastic. Perfect for AA and AAA batteries, this method is safer and more reliable than licking them (yes, people do that). Join the Avonetics community to uncover more genius tips and tricks that make life easier. For advertising opportunities, visit Avonetics.com.