2013 model year
According to Nissan, the U.S. 2013 model year Leaf has a more efficient heating system that allows the Leaf to extend its range in cold-weather conditions by 32 to 40 km (20 to 25 miles). The EPA rating is 121 km (75 miles) from 117 km (73 miles) in the previous models. Nissan explained that actually these ratings are not comparable, because for the 2013 model year the EPA changed the test procedures to calculate range for electric cars. Before 2013, the agency estimated the range assuming the battery pack was charged to 100% of its capacity. Nissan estimates that the 2013 Leaf has a 135 km (84 miles) range from a 100% charge (Long-Distance Mode charging), while the range drops to 106 km (66 miles) for an 80% charge (Long-Life Mode charging). The new EPA testing procedure considers the average of these two ranges. The increased Long-Distance Mode range comes from improvements to the Leaf’s regenerative braking system, an overall weight reduction and enhanced aerodynamics.
2014/15 model year
The official EPA range for the 2014 and 2015 model year Leaf, increased from 121 to 135 km (75 to 84 miles). The difference in range is due to a technicality, as Nissan decided to eliminate the EPA blended range rating, which was an average of the 80% charge range and the 100% charge range. For the 2014 model year, only the 100% charge range figure applies.
2016 model year
Nissan added more battery capacity which increased the range of the car on a full charge. A larger 30 kWh battery is on the SL and SV trims, and the S trim initially kept the smaller 24 kWh battery found in earlier Leafs. However, midway through the 2016 model year, Nissan changed the battery in the base Leaf S model from 24 kWh to 30 kWh.
The official EPA range for the 2016 Leaf with the 30 kWh battery is 172 km (107 miles), while the range for Leaf with the smaller 24 kWh is 135 km (84 miles), the same as the 2014/15 model year.