Battery monitoring device and method and electrical equipment

The invention discloses a battery monitoring device and method and electrical equipment, and the device comprises a voltage collection module which is used for collecting the voltage of each cell; the current acquisition module is used for acquiring the current of each battery cell; and the front-end processing module is respectively connected with the voltage acquisition module and the current acquisition module and is used for determining the internal resistance of each battery cell according to the voltage and the current of each battery cell and determining the state of each battery cell according to the internal resistance of each battery cell. Thus, the internal resistance of each battery cell is calculated based on the detected voltage and current of each battery cell, the accuracy of internal resistance detection can be effectively improved, and the accuracy of battery cell state judgment can be improved. 本发明公开了一种电池监测装置、方法及电器设备，装置包括：电压采集模块，用于采集每个电芯的电压；电流采集模块，用于采集每个电芯的电流；前端处理模块，前端处理模块分别与电压采集模块和电流采集模块相连