Doc Johnson Batteries AA 4 Pack you know you will be needing batteries for most vibrating sex toys. Why not get the best? Don't let the power fade just at that critical moment! Keep a supply of Doc Johnson's powerful AA batteries on hand. These long-lasting 1.5 volt energy sources come four to a pack. For a wide range of accessories. Love dolls with vibrations, bullet vibrators, this is the most common battery. For all sex toys requiring this size of battery. 4 AA battery 4-pack 1.5 volt batteries. 0% mercury 0% cadmium. Power packed for playtime. Doc Johnson Novelties the Great American Toy Company.