Battery management system capable of conveniently controlling power supply of battery

The utility model discloses a battery management system capable of conveniently controlling power supply of a battery. The battery management system comprises a data acquisition and processing module, a temperature acquisition module, a current acquisition module, a battery protection board, a driving power supply, a battery pack and a monitoring terminal, the data acquisition and processing module comprises a data acquisition and processing chip, a temperature probe connection port, a Hall sensor connection port, a communication connection port, a forward low voltage drop voltage stabilization module, a battery connection port, a battery state signal receiving module and a voltage detection module. The beneficial effects of the utility model are that the data acquisition and processing module transmits unreal voltage parameters of a certain battery to the battery protection board so as to control whether to trigger the power-off protection of the battery protection board and further control the connection be