Parallel connector and energy storage system

The utility model provides a parallel connector and an energy storage system, and belongs to the technical field of connectors. The parallel connector comprises a main body and a connecting assembly, an accommodating cavity and a through hole are formed in the main body, the connecting assembly is provided with a first connecting part, a second connecting part and a third connecting part, the connecting assembly is accommodated in the accommodating cavity, and the first connecting part and the second connecting part are arranged corresponding to the through hole respectively; the power transmission line comprises a first power transmission line with one end accommodated in the first connecting part and a second power transmission line with one end accommodated in the second connecting part; the device comprises a conductive piece partially extending into the third connecting part so as to electrically connect the device and the connecting assembly. According to the parallel connector, the equipment can be con