The present invention relates to charging unit, especially referring to intellectualization charging equipment used for 660 V alternating voltage inputted switching power supply type high power accumulator. Said device is power supplied by 660 V ac power supply, generating current and voltage used in accumulator charging through non - insulate chopped wave transfer circuit and insulate type H bridge transfer circuit, and adopting digital signal processor as controlling core to realize accumulator charging procedural intellectualization, through convenient parameter configuring, automatically completing all charging works. |