Portable vehicle charging system with location detection

A portable vehicle-charging system comprising:

• a control-pilot circuit configured to command a charging current to a vehicle;
• and
• a controller programmed to:
• in response to the portable vehicle-charging system being in a first location with an associated power grid having a first current rating, command the control-pilot circuit to generate a first signal that includes a charging-current parameter equal to the first current rating, and
• in response to the portable vehicle-charging system being in a second location with another associated power grid having a second current rating that is different than the first current rating, command the control-pilot circuit to generate a second signal that includes a charging-current parameter equal to the second current rating.

A portable vehicle-charging system comprising:

• a controller programmed to:
• in response to the portable vehicle-charging system being in a first location having a first power grid, output a first charging-current parameter to a vehicle that is indicative of a current rating of the first power grid;
• and
• in response to the portable vehicle-charging system being in a second location having a second power grid with a different current rating than the first power grid, output a second charging-current parameter to a vehicle that is indicative of a current rating of the second power grid.