A comprehensive battery long term test has been running using four 2012 Nissan Leafs in Phoenix, Arizona. The full report (which is very technical and lengthy) is here: https://avt.inl.gov/sites/default/files/pdf/vehiclebatteries/FastChargeEffects.pdf A brief extract is below. As part of the...

On a recent quick two day trip from Scotland to Cheltenham and back I managed to get south without any battery overheating problems, possibly because traffic was heavy. Coming back the next evening, with the outside temp at 18C, I was running into ten bars, just short of red, after a mere two...