If you have never driven an EV before, poke around on
plugshare.com and see where charging is located on Oahu.
If you end up with a Tesla, there are three Supercharger stations on Oahu.
View attachment 948880
If you end up with a non Tesla here is the map.
View attachment 948881
The gray are stations that are either under construction or broken. The green are J1772, level 2 chargers, that would charge somewhere between 4 and 20 miles per hour depending on the station. You would need to plan to be at a level 2 charger for many hours. The orange are DCFC stations that will charge at 50+ miles per hour depending on the state of charge of the car and the capabilities of the station. You would plan to be at a DCFC station for 30-60 minutes. Each marker represents one or more connector.
You can click on each one and get a crowdsourced plugshare score. That score would give you an idea of how reliable the location is for charging.
Keep in mind that charging stations often do NOT have credit card acceptors. You will most likely need to download one or more apps and create multiple accounts. Many times you can get buy with just the ChargePoint app and use it to activate and pay for partner stations.