Direct current charger convenient to carry

The utility model provides a portable DC charger, comprising a charger big head, a data line fixed at the lower side of the charger big head, a charger plug fixed at one end of the data line, a storage box in sliding fit with the lower side of the charger big head, the data line located in the storage box, and a slot and a through slot arranged at the bottom of the storage box. The through groove corresponds to the data line, the slot corresponds to the charger plug, and a baffle plate is arranged in the through groove. According to the utility model, the storage box is installed at the lower side of the charger big head, the data line can be stored in the storage box, the data line is prevented from being wound with other objects, the data line can be protected, the through groove is arranged at the bottom of the storage box, the data line can be pulled out conveniently, charging is facilitated, and the charging efficiency is improved. The slot is formed in the bottom of the storage box, so that the charger