For people who want to build an electric bicycle without interfering with the base construction we can offer other solution. If you are one of them, you should order a removable battery, i.e. with the possibility of disassembly. The most popular are 36, 46V and 8 and 15Ah batteries. The range of a bicycle powered by such a battery is from 25 to 45 km (at an average speed of 25 km / h in flat terrain and favourable weather conditions).