I want to buy a Dual EV Charger

Hi, you should have taken the Level 2 charger originally, it will charge much faster and you could have had time to charge your cars one at a time. But of course a dual charger would be much more advantageous than the one you have now. I would suggest you buy a Grizzl-E Duo Level 2 Dual EV Charger https://evadept.com/p/grizzl-e-dual-ev-charger-for-2-evs-grduo40/ . It's a great charger that will charge both of your electric cars My acquaintance in about 7 hours will fully charge the car from 10% to 100% charge.