My dad converted my bike with me, so I will know how to repair it. I can go a lot further than I would have been able to now, so I can keep up with my two children for longer. The battery is easy to remove and recharge, and I've just sent for the new smaller battery so I can, more easily, safely lock up the bike and carry the battery into the café or supermarket. In fact, my +70 year-old dad was so impressed when he had a go, that he sent off for a kit for his little folding bike, so he can pop it in the back of his car, and find different places for a bike ride that he wouldn’t previously have been able to ride to, as he lives in a particularly hilly area. All in all, a great kit with super customer support and useful explanation videos. The photo is a quick one without the battery!