Took a trip from SF to Tahoe this weekend, with a stop at the Folsom supercharger in each direction. Although it was definitely a learning experience, the lessons mainly reinforced things I've heard said again and again about EVs... but which hadn't really sunk in without experiencing them.
1) If the temperatures are low, you really, really must plug in. -- During the first night that we were there, the temperatures sunk to -8F (negative eight), and the battery lost 30 (thirty) miles of range overnight while keeping itself warm. Every time you put the car in park while in cold weather, the car warns you and suggests that you plug in... Don't Ignore this Warning.
2) Climate control and primarily-uphill driving can cause the battery range to be severely over-reported. -- The drive from Folsom to Tahoe gains 6000 ft of elevation: in order to drive the 100 mile distance, we used 190 miles of charge, meaning that we arrived with about 80 miles to spare. I had originally been planning to not charge in Tahoe at all, but due to point (1), it became absolutely necessary.
3) The superchargers are freakin' awesome... but they are not an alternative to charging overnight at your destination.
Despite the slightly hair-raising Saturday morning with only 50 miles of range left and the corresponding hasty plugin to a 120V outlet, the trip was a success. Before attempting the trip again though, let's all let the Tahoe resorts know that we would be more likely to patronize establishments that provide charging!
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