Detection device for separation of storage battery from DC power supply system

The utility model provides a detection device for separation of a storage battery from a DC power supply system, and the device comprises a housing which is provided with a display touch screen; the single-chip microcomputer is connected with the storage battery voltage acquisition module to acquire the output voltage of the storage battery; the single-chip microcomputer is connected with the floating charge current acquisition module to acquire a floating charge current signal of the storage battery, the acquired floating charge current is lower than 50% of a preset floating charge current, and when the acquired floating charge current lasts for a preset duration, an alarm is given through the alarm module; the single-chip microcomputer records the continuous preset duration lower than the preset floating charge current through the timing module and records the time point and the time period lower than the preset floating charge current, and the time point and the time period are stored through the storage;