A battery having conductions, made to be a detachable and exchangeable battery for supplying power to an electronic device, comprising: a casing, having an inner space and a plurality of contact planes, wherein the contact planes are located on an outer surface of the casing respectively, and surface normals of the contact planes are different from each other; a battery pack, comprising at least one battery cell disposed in the inner space, wherein the battery pack has at least a positive electrode and a negative electrode; and at least two electrical connecting assemblies, electrically connected to the positive electrode and the negative electrode respectively, wherein the electrical connecting assemblies are provided for transmitting power between the battery pack and the electronic device; wherein the electrical connecting assembly electrically connected to the positive electrode is arranged on at least two of the contact planes, and the electrical connecting assembly electrically connected to the negative electrode is arranged on at least two of the contact planes, characterized in that the casing has the electrical connecting assemblies located at one and the same end region of the casing, where each of the electrical connecting assemblies is an extension conductor, successively extending on the contact planes and encircling the casing forming circumferential contacts, causing that when an external force is applied to the battery in one certain direction and the electrical connecting assembly corresponding to the positive electrode is incapable of being electrically connected to the electronic device through one certain contact plane, the positive electrode of the battery is electrically connected to the electronic device through at least one of the other contact planes; and when the external force is applied to the battery in one certain direction, and the electrical connecting assembly corresponding to the negative electrode is incapable of being electrically connected to the electronic device through one certain contact plane, the negative electrode of the battery is electrically connected to the electronic device through at least one of the other contact planes. a casing, having an inner space and a plurality of contact planes, wherein the contact planes are located on an outer surface of the casing respectively, and surface normals of the contact planes are different from each other; a battery pack, comprising at least one battery cell disposed in the inner space, wherein the battery pack has at least a positive electrode and a negative electrode; and at least two electrical connecting assemblies, electrically connected to the positive electrode and the negative electrode respectively, wherein the electrical connecting assemblies are provided for transmitting power between the battery pack and the electronic device; wherein the electrical connecting assembly electrically connected to the positive electrode is arranged on at least two of the contact planes, and the electrical connecting assembly electrically connected to the negative electrode is arranged on at least two of the contact planes, the casing has the electrical connecting assemblies located at one and the same end region of the casing, where each of the electrical connecting assemblies is an extension conductor, successively extending on the contact planes and encircling the casing forming circumferential contacts, causing that when an external force is applied to the battery in one certain direction and the electrical connecting assembly corresponding to the positive electrode is incapable of being electrically connected to the electronic device through one certain contact plane, the positive electrode of the battery is electrically connected to the electronic device through at least one of the other contact planes; and when the external force is applied to the battery in one certain direction, and the electrical connecting assembly corresponding to the negative electrode is incapable of being electrically connected to the electronic device through one certain contact plane, the negative electrode of the battery is electrically connected to the electronic device through at least one of the other contact planes.