Battery and battery system

The utility model provides a battery and a battery system. The battery comprises a top cover assembly; a battery cell; the processing chip is located on the top cover assembly; a transfer clamp assembly; and a connecting line assembly. Wherein the switching clamp assembly is connected with the battery cell and the connecting line assembly, one end, far away from the switching clamp, of the connecting line assembly is connected with the processing chip, the battery cell is connected with the processing chip, and the battery cell supplies power to the processing chip. According to the utility model, the self-powered battery capable of supplying power to the chip through the electric energy of the battery cell is designed, so that the problem of unstable power supply caused by wireless power supply when the intelligent battery cell supplies power to the chip in the prior art is solved, and the problem of space occupation caused by the adoption of a built-in battery for power supply is solved at the same time. 本实