But first a clarification. This theme is not about how a battery works on the inside. This is more a topic addressed in "galvanic cell" in the field of electrochemistry.
Here you look at a battery, like you buy in a store. A closed container with two terminals to which a voltage is present. You'll see, even without knowing whether it is a alkaline, lithium or lead acid battery, there is plenty to discover.
In this first part you will learn the most important characteristics of a battery. In 11 experiments, you realize the difference between an ideal and a real battery.
In the second part (Go on...) you will learn in another 6 experiments, what happens to the battery when it discharges. This results in a lot of useful tips for the daily use of batteries .
Let's go...and have fun...