Cylindrical battery with universal charging interface

The utility model belongs to the technical field of batteries, and particularly relates to a cylindrical battery with a universal charging interface, which comprises a cylindrical shell with an opening at one end, a battery cell arranged in the shell, a charging and discharging PCB (printed circuit board) arranged above the battery cell, and a charging and discharging interface, a positive electrode cap; two negative electrode elastic sheets; a rotary cover; the negative electrode elastic sheet is electrically connected with the battery cell; the positive electrode cap extends outwards from ahole in the upper surface of the rotary cover; one end of the fixing piece is arranged in the rotary cover, and the other end is positioned in the open end of the shell; the charging and discharging PCB is arranged in the fixing piece; the fixing part comprises a left support and a right support, a first notch which is transversely formed is formed in the edge of one side of the left support, a second notch which is trans