Storage battery management system and method as well as storage battery charging management system and method

The invention relates to a storage battery management system and a method as well as a storage battery charging management system and a method. The storage battery management system comprises a storage battery and a main circuit control system; the storage battery comprises two or more sub storage batteries; each sub storage battery comprises at least one storage battery monomer and a sub-circuit control system; the main circuit control system comprises a main circuit display unit, a main circuit measuring unit, a main circuit storage unit, a main circuit micro-processing unit, a main circuit communication interface unit and a main circuit power unit; the sub-circuit control system comprises a sub-circuit measuring unit, a sub-circuit communication interface unit, a sub-circuit storage unit, a sub-circuit micro-processing unit and a sub-circuit power unit. The invention has simple system, convenient maintenance, simple circuit design, lower manufacturing and application cost, and can prolong the service life of the storage battery and improve the whole use ratio.