Is USB power available when the bike is not in use?

I am interested in buying the Neo Bike Plus. I have an iPad Pro M1 that I would like to use with the bike. One of the USB-Ports is 12,5 Watts, which seems to be too weak to keep the power level of my iPad while running an app like Zwift. Anyone out there with an M1 or M2 iPad who has experience with it? 

I would like to leave my iPad on the bike most of the time so it would be nice if it at least can recharge to 100% over night on the bike. Can the USB ports deliver power when the bike is not in use?