I remember testing batteries in my tongue. I really had no better idea to know of if my battery was alive or dead. But thanks to this video, I don’t have to go through that ordeal again. You don’t even need to be a pro to learn this simple trick; it can be done by anyone.
Many devices still use alkaline batteries; so it is really helpful to know if your battery is good to go. You can always use a battery meter to check your battery life…but not everyone of us has a battery meter at home right? So what you need to do? Just go ahead and drop it..