Amp hours seems like the wrong measure. How many volts are the batteries? Tesla's kwh is much clearer. A tesla with 85kwh is rated for 425 km (265 miles). The

Amp hours seems like the wrong measure. How many volts are the batteries? Tesla's kwh is much clearer. A tesla with 85kwh is rated for 425 km (265 miles). The only reason I can imagine to use amp hours instead of kwh is to hide the fact that their batteries have way less capacity than a Tesla. Can someone explain why you'd use amp hours? The article below says the 94 Ah battery is 33kwh. Wow, that's a lot less energy than an 85 or 100kwh tesla. The article below says range of "up to 115 miles". Tesla 85kwh is EPA 265 miles, which is no doubt more real than the manufacturer "up to" mileage. Why doesn't BMW make a bigger battery car? Expense, weight, ability to keep it cool while charging? They seem far behind. The roadster, that came out in 2008 had a 53kwh battery (last year they offered an upgrade to 80kwh for $29k). Tesla needs better competition to keep them honest. Maybe in 2018 when the all electric Porsche comes out, and the model 3, they will be closer. http://insideevs.com/official-2017-bmw-i3-gets-33-kwh-battery/ http://insideevs.com/official-2017-bmw-i3-gets-33-kwh-batter...