The invention discloses a battery early-warning method, a device and a storage medium and belongs to the technical field of terminals. The method comprises the following steps: acquiring a target electric signal, wherein the target electric signal is an electric signal generated when appointed parameters of a target material block are changed, the appointed parameters comprise deformation or temperatures, and the target material block is any one of multiple material blocks; on the basis of the target electric signal, confirming variation of the appointed parameters of the target material block; on the basis of the variation of the appointed parameters of the target material block, implementing early warning. Not only is battery early warning achieved according to stress or temperature variation of the surface of a battery, but also effective early warning can be implemented before serious problems, users can be reminded, and personal injury and property loss caused by batteries are avoided for users.