I drive a '12 Leaf which has been driven 12000 miles. When I start it after charging fully overnight in my garage, it reads between 70 and 80 miles range. After travelling 10 miles, it reads 50 to 58 miles remaining. The most I will drive is 52 miles, being fearful of running out of juice on the road. When I pull into the garage it reads between 5 and 9 miles left. Obviously the gauge is off. I don't know if I can safely drive further, because of the inaccuracy of the readout, and is there more or less available range when it drops down to 50 and 58 miles. I was told by Nissan that because I haven't lost the required number of bars, they can't help me, although it is apparent that the battery is quickly going bad. Fortunately, I have less than a year remaining on my lease so I can walk away and get a reliable car. I don't think Nissan is really trying to stay in the EV business. I would just like to know how to get a true read on how far I can drive on a charge.