bateries are not charged with electricity bro, first of all science is wrong. energy is defined as the ability to do work. WRONG its the potential for the abilty to do work. big BIG difference. a battery is like the fat cells in yo body foo! when you use your stored energy (fat or calories) it produces energy which we can apply to whatever we need to do. a battery has chemicals in it that are basically the same thing, you can cut open a battery and it wont release a huge bolt of electricity because it doesnt contain any.

get an education man!

http://www.howstuffworks.com/battery.htm