A battery module, comprising: - a group of electrically interconnected battery cells; - a polymer housing, wherein the group of electrically interconnected battery cells are disposed within the polymer housing; - a major terminal of the battery module configured to be coupled to a load for powering the load, wherein the major terminal comprises: - a base that is disposed within a recess in a surface of the polymer housing; and - a post that is electrically coupled to the loads and configured to removably couple directly to the base to electrically couple the major terminal to the load; and - a bus bar that provides an electrical pathway between the group of electrically interconnected battery cells and the major terminal, wherein the bus bar is disposed within the polymer housing, wherein the polymer housing comprises: - a lower polymer housing portion; and - a polymer housing cover, characterized in that the polymer housing cover is disposed at least partially over the recess to secure the one or more portions of the major terminal molded into the recess within the polymer housing; and that the polymer housing further comprises a polymer housing collar configured to secure the polymer housing cover to the lower polymer housing portion; and wherein a first conductive material of the base is different than a second conductive material of the post. - a group of electrically interconnected battery cells; - a polymer housing, wherein the group of electrically interconnected battery cells are disposed within the polymer housing; - a major terminal of the battery module configured to be coupled to a load for powering the load, wherein the major terminal comprises: - a base that is disposed within a recess in a surface of the polymer housing; and - a post that is electrically coupled to the loads and configured to removably couple directly to the base to electrically couple the major terminal to the load; and - a bus bar that provides an electrical pathway between the group of electrically interconnected battery cells and the major terminal, wherein the bus bar is disposed within the polymer housing, wherein the polymer housing comprises: - a lower polymer housing portion; and - a polymer housing cover, characterized in that the polymer housing cover is disposed at least partially over the recess to secure the one or more portions of the major terminal molded into the recess within the polymer housing; and that the polymer housing further comprises - a base that is disposed within a recess in a surface of the polymer housing; and - a post that is electrically coupled to the loads and configured to removably couple directly to the base to electrically couple the major terminal to the load; and - a bus bar that provides an electrical pathway between the group of electrically interconnected battery cells and the major terminal, wherein the bus bar is disposed within the polymer housing, - a lower polymer housing portion; and - a polymer housing cover, characterized in that the polymer housing cover is disposed at least partially over the recess to secure the one or more portions of the major terminal molded into the recess within the polymer housing; and that the polymer housing further comprises