The truth is, I expected more autonomy. I do not understand such a high price for a product that really does not improve above.
In my brammo empulse, if you go really fast constantly, in summer, only 20 kms you can reach temperatures above 45 ° C at the batteries, and therefore does not allow you to regenerate.
At finaly: "despite the enthusiastic energy put into battery technology—the Achilles’ heel to delivering on the promise — thus leaving electric bikes still feeling like a tease" very clear....Needless to research and develop more, to achieve a product that comes close to what the market wants to buy.