【Ultra-long Range 52V 40AH Battery】 The Q20 pro electric dirt bike for adults is equipped with dual 52V 20Ah batteries (total of 40Ah), which are UL certified and have a BMS system. 【Long-Lasting Battery Life】 - Equipped with UL-certified 48V 15Ah capacity removable battery, the q20 Lite can travel up to 50 miles with pedal assist or up to 30 miles with electric power alone.