Leaderboard

As the temperature drops, your range drops. It improves as the battery warms up (76f is optimum in the Energi) which is a major issue as the CMax Energi has an inept thermal regulatory system. For example, this am it was between 47-49f (before 8am) driving the 19 miles to the state park for a swimming workout in the 'warm" lake. The battery pack was 65f at start, with 4 windows down and driving on the state highway at 55f, I dropped the internal cabin temperature from 66 to 62f and it just stayed there for 15 minutes. I then gave up and closed all four windows only to watch the battery temperature rise all 1f while the cabin increased to 64. It is very difficult to regulate the battery temperature of the CMax Energi in an attempt to optimize efficiency and minimize excess heat and related degradation.