A system comprising a support arm for supporting a charge connector which can be connected to a vehicle, and the charge connector; the support arm comprising: a first arm portion provided in a freely swingable manner, the first arm portion having a first bracket, a second bracket provided at a distance from said first bracket, and an upper shaft and a lower shaft provided between said first bracket and said second bracket and pivotably coupled to said first bracket and said second bracket; a gravity compensation apparatus having a spring portion supported by said second bracket, for generating spring force canceling, by said spring portion extending and contracting with swing of said first arm portion, gravity acting on said first arm portion; and a cable routed along said first arm portion and connected to said charge connector; the charge connector having a support portion supported by said first arm portion and provided to be rotatable around said support portion, said support portion being arranged at a position of a center of gravity of said charge connector, said first arm portion further having an L-shaped hanger portion connected to said second bracket, for suspending said support portion from above; said hanger portion having a base connected to said second bracket, and, a first prong portion and a second prong portion formed to extend from said base in a vertically downward direction and provided at a distance from each other; said support portion being suspended by said hanger portion and being positioned between said first prong portion and said second prong portion; said charge connector having an operation portion for coming out of a state where said charge connector is fixed to the vehicle, said operation portion being positioned between said first prong portion and said second prong portion while external force is not applied; a space for operating said operation portion being secured between said first prong portion and said second prong portion; said charge connector being held in such a position that said cable is hung downward from said charge connector while external force is not applied, said charge connector having a grip portion gripped during a charging operation, and said grip portion being arranged below said hanger portion while external force is not applied to said charge connector. a first arm portion provided in a freely swingable manner, the first arm portion having a first bracket, a second bracket provided at a distance from said first bracket, and an upper shaft and a lower shaft provided between said first bracket and said second bracket and pivotably coupled to said first bracket and said second bracket; a gravity compensation apparatus having a spring portion supported by said second bracket, for generating spring force canceling, by said spring portion extending and contracting with swing of said first arm portion, gravity acting on said first arm portion; and a cable routed along said first arm portion and connected to said charge connector; the charge connector having a support portion supported by said first arm portion and provided to be rotatable around said support portion, said support portion being arranged at a position of a center of gravity of said charge connector, said first arm portion further having an L-shaped hanger portion connected to said second bracket, for suspending said support portion from above; said hanger portion having a base connected to said second bracket, and, a first prong portion and a second prong portion formed to extend from said base in a vertically downward direction and provided at a distance from each other; said support portion being suspended by said hanger portion and being positioned between said first prong portion and said second prong portion; said charge connector having an operation portion for coming out of a state where said charge connector is fixed to the vehicle, said operation portion being positioned between said first prong portion and said second prong portion while external force is not applied; a space for operating said operation portion being secured between said first prong portion and said second prong portion; said charge connector being held in such a position that said cable is hung downward from said charge connector while external force is not applied, said charge connector having a grip portion gripped during a charging operation, and said grip portion being arranged below said hanger portion while external force is not applied to said charge connector.