The invention relates to a single-row battery pack. The single-row battery pack comprises a bracket and a bracket fixing base, wherein the bracket is provided with two or more 1# battery accommodatingslots (determined according to the quantity of single-row batteries), a plurality of elastic sheet bodies, a plurality of battery heat dissipation slots, a plurality of heat dissipation slot holes and a plurality of strip-shaped bumps, wherein the plurality of the battery heat dissipation slots are formed among the elastic sheet bodies; the plurality of heat dissipation slot holes are formed among the 1# battery accommodating slots; the plurality of strip-shaped bumps are arranged uniformly; the strip-shaped bumps are arranged uniformly; the bracket fixing base is provided with a plurality ofsmall bar bumps, a positioning square sheet, a plurality of heat dissipation slot holes, a positioning screw hole or a clamping base and a plurality of strip-shaped bumps; and the bracket fixing baseis used for pressing the plurality of elastic sheet bodies on the bracket through small bar bumps arranged on a body in order to tightly hold and effectively fix batteries which are different in sizetolerances and manufacturer standards; heat generated by the batteries during working is discharged from an upper part; cold air is supplemented from a lower part; the batteries are cooled effectively; and unsafe events caused by heating are avoided effectively.