Haven't installed my Level 2 charger yet but realized I can up the Level 1 to 12 amps from 8 amp default and lock in that setting under home charging location (otherwise it resets to 8 amp). Now I'm getting over 2.5 miles per hour instead of 1 mile per hour at 8 amp. That's more than I drive daily anyway so may not install the level 2 for now.