Enterprise is the only I know of. Maybe you can reserve it for your time frame. Oahu has plenty free Volta stations at malls but they can be hard to find not occupied. OpConnect is more prevalent, but unfortunately has switched over to a pay model. Walmarts use Blink, and the the City owns several Charge Point stations. Several large hotels have free stations as well. In my opinion, It may not be worth the effort.
Oahu has thousands of EV owners due to high fuel costs, although electricity is outrageous here, usually costing in the mid 30 cents per kwh. Other islands are as high as 50 cents. Photovoltaic systems are the real saving grace for us.