at work on L2 charger every 2 days since it's free for 2 more year. after that it will be at home on 120v because its 5 time cheaper. .06$/kw versus 1$/hr on the L2 . Then maybe I will check to get a L2 at home but right now, the price is way too high to cut time in half. Charging at work will be only when I need the extra 12% to go somewhere.