but for the plug you use to make the 240V then leave the jumper intact so that both the plugs are available at 240V. on this duplex outlet you would put the white wire on the regular common side ...

Level 2 Charging: Requires a dedicated 240V circuit and can charge your EV much faster, typically providing 15-25 miles of range per hour. Compatibility of 240V Chargers with 220V Outlets ...