We offer our bikes in two different versions, which differ only from the supplied battery.The only difference lies in the capacity of the batteries.36V 10.4 AH Sanyo panasonic: up to 80 km range*36V 14 AH Panasonic: up to 100 km range** A tour is a tour, dangers of a 70 kg cyclist, on a flat surface, without stopover at support level 1. Both batteries have thermal and electronic BMS sensors that are programmed in such a way that they ensure optimal operation when charging and unloading. Cells of the Sanyo and Panasonic brands, which stand for reliability and durability, are installed.