Cheevalry C16 Electric Bike 20 3" e-City Bike Foldable 16AH E-bike Range100km. Battery capacity：48V 16AH. What is particularly important for an electric city bike?. Correct: it must be compact. Whether you want to transport it in the trunk of a car or take it with you on a bus or train, you can always take a powerful electric bike with you.