Battery parameter detection module

The utility model discloses a battery parameter detection module, which comprises a current and voltage acquisition module, an A/D conversion module, a microprocessor and a display, the current and voltage acquisition module comprises a plurality of current transformers CT, the positive electrode of the battery E to be tested is connected with the load resistor r through the primary sides of the plurality of current transformers CT, and the secondary sides of the current transformers CT are connected with the input end of the A/D conversion module through the current signal processing circuit. According to the utility model, the current and voltage acquisition module is arranged to acquire voltage and current analog signals of the to-be-tested battery E at the same time, a large current signal transmitted from the to-be-tested battery E is shunted in multiple paths through the plurality of parallel current transformers CT, and then the current is converted into a smaller current through the current transforme