After charging to 90% last night, and today driving about 160 miles, I made a stop about 8 miles from home with rated range indicating 77 miles. I sat in the car listening to the radio maybe 15 minutes, range indicated 76 miles. I finished my last errand after about an hour and started driving again. After about .5 mile, at a stop light I happened to notice 80 miles range. I rarely get much below 50% SOC. Has anybody else seen this... uhm... is there an antonym for "vampire drain?"