The invention discloses an inline method of single batteries of a dynamical battery pack, in particular relates to a method to be connected with the single batteries into a combined battery. Firstly, the edges of positive and negative plates are welded with an electric conductor, then the electrode plates are covered by a membrane bag, and the positive and negative plates are alternatively overlapped to form an electrode assembly; secondly, a conductor of the positive plate of the electrode assembly and a conductive torrent body of the negative plate of another assembly are alternately overlapped to form a battery pack series with the anode of one electrode assembly connecting with the cathode of the other electrode assembly. The batter pack of the invention, which is combined by the method of the inline single batteries, has the advantages of small internal impedance, large specific power and the high efficiency for fast charging.