This product exceeded my expectations. My car as is (Chevy volt) took 13 hours to completely charge with this quality charger it now takes 4.5 hours, and it was very easy to install. The charger also looked and felt like it was well made and it is weatherproof so no worries in the heavy rain. The only negative I can think of is that the charger cord is only 12 feet. I would recommend that if you need more length to get one of these with the longer cord its not too much more cost