Patent attributes
A vehicle charger includes two charge connectors configured to couple with DC charge ports of two vehicles each having a battery, a buck boost converter connected between the two charge connectors configured to convert a first DC voltage to a second DC voltage, and a controller. The controller is configured to wirelessly connect to a mobile device to obtain a charging instruction identifying a donor vehicle and a beneficiary vehicle among the two vehicles, and responsive to the two charger connectors being coupled with the DC charge ports of the donor vehicle and the beneficiary vehicle, output a request for charging permission to a digital device associated with at least one of the vehicles. The controller is further configured to, responsive to receiving the charging permission, start a charging session by transferring electric charge from the donor vehicle to the beneficiary vehicle via the buck boost converter.