Lithium-ion power battery pack equalization charging system

The invention discloses a lithium-ion power battery pack equalization charging system, which is used for carrying out equalization charging management on a lithium-ion power battery pack. The lithium-ion power battery pack equalization charging system comprises a lithium-ion power battery pack, a monitoring module, a control module and an equalization charging module, wherein the monitoring module and the equalization charging module are connected with the control module respectively; the lithium-ion power battery pack comprises a plurality of lithium-ion power batteries which are arranged in series; and the equalization charging module comprises an equalization charging protection unit, a charger and a charging bus. The equalization charging protection unit is arranged in a mode of being in parallel connection with each of the lithium-ion power battery, and the output end of the equalization charging protection unit is connected with the charging bus. The charging bus is connected between two ends of the lithium-ion power battery pack in parallel, and the charger is respectively connected with the charging bus and the lithium-ion power battery pack. The lithium-ion power battery pack equalization charging system is high in charging efficiency through formation of the feedback type equalization charging protection system.