Flux Hybrids converts conventional vehicles to be plug-in hybrids in a way that pays for itself. Our goal is to provide sustainable options that pay for themselves so profit and sustainability are no longer competing goals. Our proprietary transmission integration system allows us to drive the car in all-electric mode until the battery is depleted. Then the user can either drive like a normal hybrid using some gas or stop and swap out our modular battery pack for a new one in a fraction of the time it takes to charge. This gives customers the efficiency of all-electric vehicles, with the operational flexibility of conventional gas cars. Additionally, if our system fails, the car runs the same as it did before.