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I purchased my Cmax Energi in October 2013. I chose the Cmax because it had the EV range to provide a round trip to /from work without charging, and it has enough room to haul a little cargo. It came with a cord that can be plugged into a standard 110v 20 Amp wall outlet. It takes about 3 hours to fully charge a depleted battery using the 110v 20A cord. The car did not come with a Level 2 charger nor was one offered, so I purchased a Level 2 charger from Amazon, a Leviton 420-EVB22-3PT. It is designed to be plugged into a 240 v receptacle. I did not want to have an electrician pull a 240-volt line, so I looked at how to use my dryer receptacle. The issue was that my dryer uses 2 hots and a neutral, and the charger requires 2 hots and a ground (neutral and ground are not the same!). My solution was to make a breakout box: one side plugs into the dryer receptacle, the other side into the charging station, so no permanent installation, and I can plug into any 3 wire dryer outlet. I wired a 3 prong dryer cord to a terminal board installed on the breakout. I cut and secured the neutral in the cord, disconnected. I then connected a ground wire from the water pipes (my water heater is near) to the terminal board. Now I have the required 2 hots and a ground present on the terminal board. Then it was just a matter of selecting the correct pigtail to connect the terminal board on the breakout to the charging station. I have ample length so if I’m visiting and need a recharge and I have the whole setup with me, I can recharge. If you attempt to connect the charging station directly to the dryer receptacle without removing the neutral and providing a ground, the charging station will not function because it contains GCFI circuitry that requires a ground to work. I’ve had the charging station for 7 years with no issues. It takes about 2 hours to charge my drive battery when fully depleted.