According to the article, two-speed transmissions can increase range about 5%. That is important because batteries are so expensive. However, battery prices ar

According to the article, two-speed transmissions can increase range about 5%. That is important because batteries are so expensive. However, battery prices are falling rapidly. They dropped 35% in 2018 alone. That being the case, I am guessing most ev manufacturers will stick with single-speed powertrains, and focus their technological efforts elsewhere.