I don’t know about all chargers but i think so. If you have a Wall Charger, you can switch it off at the isolator switch. Alternatively, you can set a charge schedule for 0% and switch this on when you want to lock the charger
Current Car: Hyundai Kona Premium EV...2 way 40kg hoist
Last Car: Toyota C-HR Excel Hybrid...4 way 80kg hoist