I'm planning on purchasing a used 2016 eGolf and planning ahead on what I'll need in my garage to charge it. Is the charger that will come with it just 120v? And if I want a 240v option I would need to purchase a different charger? Or is only the 7.2 capable of being charged with 240v and the 3.6 can ONLY be charged with 120v? What do I need to know about 32amp vs 40amp charger options?