Well my original order was missing the LED piece to turn it on and off. They were quick to respond and ship the part as soon as they were made aware. Then the piece didn't fit my road bike. My handlebars are wrapped and even without the tape the piece didn't fit it. This was disappointing but I resolved it with a zip tie (I hope). There was another piece included (a thumb throttle I believe it's called) that apparently isn't needed and doesn't fit my set up but it was frustrating to figure that out. I've only taken it out twice before cold weather hit but I did enjoy riding it those two times. Not sure how long the battery will last as I haven't ridden it long enough, first rides were only 6miles.