The problem is that batteries are too expensive, too heavy, and they wear down eventually. Not only is there the market demand, but there is also the fears of

The problem is that batteries are too expensive, too heavy, and they wear down eventually. Not only is there the market demand, but there is also the fears of consumer backlash if they don't (or can't) get it 150% correct. Remember the beating that GM took with diesel cars back in the 80's? Here's the items that need to be overcome: 1) For consumers that don't have a garage, they have to use public charging infrastructure. 2) For those who charge at home, if they do any extended driving they need to use public charging infrastructure 3) The current public charging infrastructure doesn't charge fast enough. For case 2, you can get by (sometimes) with charging at 150 miles in half an hour. Not acceptable for case 1. 4) Most importantly, battery wear and cost. Let's say a battery that costs 30K, for 300 miles range, lasts 10 years. Cost of a "fill up" (300 miles) is about $12.00 of electricity, and $60.00 of wear on the battery. Yes, the battery isn't totally worn down, but they are less useful for automotive use if the capacity is significantly lessened. Now the larger the battery size, you can get by with charging to 80% capacity, and discharging to about 15%. This still significantly increase the longevity, but the cost structure is such that 200 mile batteries (or lower) is all you find in "affordable" electric vehicles. So for this to really take off, I believe you need a battery capacity of 500 miles, at a cost of 15k, with charging time of 300 miles range in 15 minutes. (Tesla is there on the charging time with their one example of a "1000 mph" charger, so hopefully this will be rolled out to the wider public across more manufacturers).