It weighs 37lbs. The battery can't be removed . How long the charge last depends on many factors, your weight ,. how much u throttle are u going up hills? I ride it 6 miles to work with no problem and charge it when I get to work. But using pedal assist I get about 15 miles per charge. The battery is not removable on eb 5 but it is removable on the eb 7. If u can afford it get the eb 7 for an extra $100 that battery is removable.