Modular cell base

The utility model relates to a battery holder comprising a battery holder, two positioning elements and two conductive elements, wherein, the battery holder is provided with battery jars which can contain battery cells; the positioning elements are arranged on points of the battery holder corresponding to a preset jumper joint of a circuit board; the two conductive elements are respectively provided with a first elastic part and a second elastic part connected together, wherein, the first elastic part is provided with the ends of the battery jars, and the second elastic part is arranged at the positioning elements on the bottom of the battery holder. Accordingly, an assembling manufacture process becomes more time-saving and labor-saving, and a perfect product rate becomes higher.