>With current battery tech and infrastructure, EV is a 50 mile technology. It has nothing to do with battery tech itself, doesn't matter how light or dense the battery is. The limit is infrastructure. 50 miles is about what you can charge with a level 1 charger overnight.The vast majority of first-time EV buyers also install a 240v charging station, which typically costs about $1200 including labour and will fully charge most cars overnight. Frankly, you'd be mad to spend $40,000 on a new EV but hamstring it by cheaping out on charging.
> The problem with more batteries is charge time. It's not good enough right now.
It's already good enough for most users, assuming you have reasonable access to suitable rapid chargers on your route. Very few people drive continuously for three or four hours, stop to refuel and immediately return to their car - human biological functions are a meaningful factor. You might be surprised at how long it actually takes you to refuel, pay for your fuel, visit the restroom, buy a coffee and stretch your legs, especially if you've got kids in tow. Rapid-charging an EV does take longer than refuelling a car, but you can do other stuff while it's charging.
Most ICE car owners only infrequently take long journeys. Most EV owners who do take longer journeys find that charging times only add a few minutes to the duration of their journey and are not a significant inconvenience. Charge times do remain a major obstacle for people who drive substantial distances for professional reasons, but they represent a small minority of car buyers.