Equalization discharge device for high-capacity rechargeable battery pack

The utility model relates to an equalization discharge device for a high-capacity rechargeable battery pack. The equalization discharge device comprises a central controller, an equalization circuit and an electric quantity collection device, wherein the output end of the electric quantity collection device is connected with an input end of the central controller; the output end of the central controller is connected with an input end of the equalization circuit; the device can be connected with external high-capacity rechargeable batteries; the output end of the high-capacity rechargeable batteries is connected with an input end of the electric quantity collection device; and input ends of the high-capacity rechargeable batteries are connected with an output end of the equalization circuit. Therefore, the device can be adopted for maintenance of the high-capacity rechargeable battery pack so as to ensure the equalization of capacities of all the batteries in the battery pack, effectively improve the performance of the battery pack and prolong the service life of the battery pack.