Abstract: A system for the recovery of kinetic energy, such as the energy from a rotating wheel of a vehicle, comprises a first electric motor/generator rotationally connected to at least one kinetic energy input; a battery; an electric/hydraulic regen system comprising a second electric motor/generator; and an electrical drive regen controller. The controller is configured to proportion electrical energy, generated from rotation of the first electric motor/generator, between the battery and the second electric motor/generator, based in part on the rate of charging capability of the battery. In this way, energy that would normally be lost as dissipated heat is directed to an electric/hydraulic regen system and stored.