Dinaoeel (and not Dinaœel or Dinaöel or Dinaoël) is a brand of batteries invented by the Tubby Oil company and are used to power all of the Teletubbies' evil weapons and super evil contraptions, the most notable of all of these is the Little Animal Telephone. Being from Tubby Oil, there is combustible lemons oil that combusts inside of these things. Dinaoeel batteries are the most widely used and sold energy source in the UnWorld. All things in the universe are made possible through the use of Dinaoeel batteries.
Dinaoeel batteries were once privately owned by Dipsy, and were built using advanced Tubby technology. These batteries became popular once they were found out about and were eventually sold in stores, and used by many in the UnWorld, unbeknownst to them that they were built by the Teletubbies. These batteries eventually and as of now have became a standard for most battery and cell manufacturers to build their products. Dipsy used his monopoly on batteries to use Dinaoeel batteries to fuel his Little Animal Telephone.
Dinaoeel batteries are also used as the main energy source of Teletubby Land, and have been used for that purpose since the beginning. They are also what allow most Teletubbies to live their lives unmolested by alien life. Because of this, the Teletubbies are so powerful and dangerous that the government created the Tubby Police for the sole purpose of stopping the Teletubbies. The largest batteries they ever made, and the UnWorld's biggest, are used in HMS Captain 37, Captain 37's largest cruise ship.