In the Zone at Herlev Hospital you can park freely on all parking spaces, including the time-limited spaces. However, you cannot park on spaces reserved to LetsGo, emergency vehicles or vehicles belonging to the Capital Region of Denmark. You can access the area 24 hours a day.
If you need to charge a car, there are charging stations at P4. If you park on a space with a charging station, you are obliged to plug in the car. See how you charge here. If you need a car, that is plugged in see here how to unplug it.