The document describes a new transformer called the Bi-Toroid Transformer (BiTT) that is more efficient than conventional transformers. The BiTT redirects magnetic flux from the secondary coil in a way that minimizes heat loss in the primary coil. This makes the on-load power requirement for the primary coil less than or equal to the no-load requirement. Videos demonstrate the BiTT decreasing primary coil input under load. The BiTT has potential applications for electric vehicles and satellite ion propulsion systems.