A vehicle power system comprising: a battery ; a power distribution unit ; an electrical connection point for a vehicle, the electrical connection point configured to provide electrical power from the battery to an electrically-powered accessory configured to be used with at least one of the vehicle, a trailer, and a transport container; and a controller , configured to: obtain authentication information for the electrically-powered accessory configured to be used with the at least one of the vehicle, a trailer, and a transport container; obtain an authentication level for the electrically-powered accessory configured to be used with the at least one of the vehicle, a trailer, and a transport container, wherein the authentication level is based on the authentication information; and direct a connection operation between the vehicle power system and the electrically-powered accessory configured to be used with the at least one of the vehicle, a trailer, and a transport container when the authentication level permits access to power from the vehicle power system, wherein the connection operation includes: supplying power from the vehicle power system to the electrical connection point by directing the power distribution unit to supply power to the electrical connection point. a battery ; a power distribution unit ; an electrical connection point for a vehicle, the electrical connection point configured to provide electrical power from the battery to an electrically-powered accessory configured to be used with at least one of the vehicle, a trailer, and a transport container; and a controller , configured to: obtain authentication information for the electrically-powered accessory configured to be used with the at least one of the vehicle, a trailer, and a transport container; obtain an authentication level for the electrically-powered accessory configured to be used with the at least one of the vehicle, a trailer, and a transport container, wherein the authentication level is based on the authentication information; and direct a connection operation between the vehicle power system and the electrically-powered accessory configured to be used with the at least one of the vehicle, a trailer, and a transport container when the authentication level permits access to power from the vehicle power system, wherein the connection operation includes: supplying power from the vehicle power system to the electrical connection point by directing the power distribution unit to supply power to the electrical connection point. obtain authentication information for the electrically-powered accessory configured to be used with the at least one of the vehicle, a trailer, and a transport container; obtain an authentication level for the electrically-powered accessory configured to be used with the at least one of the vehicle, a trailer, and a transport container, wherein the authentication level is based on the authentication information; and direct a connection operation between the vehicle power system and the electrically-powered accessory configured to be used with the at least one of the vehicle, a trailer, and a transport container when the authentication level permits access to power from the vehicle power system, wherein the connection operation includes: supplying power from the vehicle power system to the electrical connection point by directing the power distribution unit to supply power to the electrical connection point. <EOS>