an electrical battery exchanging system for reuse application is disclosed . the system includes : a number of rechargeable battery packs , a battery condition detecting module , a user id checking module , a power source , a charging controlling module . since the system can monitor conditions of rechargeable battery cells of the rechargeable battery packs and uses user id for operating control purpose , it has benefits of conveniently exchanging low - power battery with fully charged one , easily sorting out end - of - life batteries and getting them for recycle or reuse , simply charging service fee and stably operating under a business model .