ERP charges are payable and will be charged to your BlueSG account automatically. There is no need to insert the cash card into the Bluecar IU although you may choose to do so.
For all BlueSG stations, there are no parking charges.
For non-BlueSG stations, third party parking charges will still apply. You will need to insert the cash card into the Bluecar IU for payment. Please note that your rental is still ongoing until you end your trip at a BlueSG station.