Judge: So, Phoenix Wright, you say that the battery is the metal strips inside along with the chemical inside that causes the reaction.
Phoenix Wright: Yes sir! Without the chemical, in this case copper sulfate, the chemical reaction would never have started, and electricity wouldn't flow though it.
Judge: Yes, Phoenix Wright, I agree with you. From this case I conclude that a battery is not complete without a chemical.
Drawing of a home made battery with labels: