Seesaw / battery

Various kinds of batteries are used widely in many electric equipments. Those products are very useful, but we sometimes feel it a bit uncomfortable when we try to put it out to change because they have a shape of thin and long cylinder. So we often fail to catch the battery out of its shape. I applied the principle of levers to solve this problem. I simply changed the shape to put the battery out easily. This battery has a different shape which has six cutting surfaces around the (+) pole. We can realize the direction of the battery. If we push the cutting surface, the opposite side of the battery will come up so we can change it easily.