So far so good, fantastic battery I rode it all day and it's still full after charging overnight. It's an odd but enjoyable ride. It's part bike part e bike. If you are going up a hill it's way easier because the bike helps you but you can't expect it to pull you up the hill by itself. It's fantastic for flat land, downhill, grass, dirt. Just have to use it as a regular bike up a hill. Either way very impressed with the quality and the ease of use