OMG! I found a video of someone performing a bunch of different battery tricks. For instance, if you pour vinegar into a glass and drop a D battery into the glass of vinegar the glass will turn to plastic and fold! This video below has so many other battery tricks. Did you know that a 9 Volt battery has 6 little AAA batteries inside if you open it? These battery tricks are mind-blowing to me! There’s about 4 or 5 tricks I want to try with my son. Check them out. What do you think, real? Or mind tricks? haha!