Alessandro Volta made the first battery in 200 years ago.Now batteries these days are alot more smaller and can hold more energy. When you charge your battery the energy comeing from the charger goes into the battery and becomes stored chemical energy, and when you use it on a light bulb the energy again transforms into electrolyte and curculates through the curcits createing light and heat. When energy moves it is called kanetic enrgy. You can also use a battery on a motor, when energy it used to power moveing object the energy is called mechcanical energy. Batteries has been around for a while from 10 meters that can barely hold energy to very small size that hold alot energy and I predict batteries will keep evoleing.