LIEBO in the field of new energy environmental protection and energy saving, master the key core technology of new energy, including battery group technology, BMS battery management system, signal accurate measurement technology, battery state accurate estimation, battery balance control technology, charging technology, etc.. Reasonable charging method can prolong the life and improve the charging efficiency of lithium battery, which not only depends on the design and material of power battery, but also depends on the charging control strategy related to the charger.