I run 2 Chargers at once When I need to fast charge a Delta Q charger is 1500 Watts That’s like 12 Amps Max. So if you can run 2 at a time that’s 24 Amps. Here are some pics and info about my charge set up
Both of these chargers have been re worked by David to charge my car at Higher voltages and Use either a 110 Volt plug. OR a J1772 plug