A lithium ion battery module product portfolio, comprising: - a first lithium ion battery module product comprising a first housing configured to receive a first set of prismatic electrochemical cells, the housing including a base having a first footprint; - a second lithium ion battery module product comprising a second housing configured to receive a second set of prismatic electrochemical cells, the second housing including a base having a second footprint that is substantially the same as the first footprint, wherein a height (H1, H2) of the first and second housings (40A, 40B) is different for each of the first and second lithium ion battery module products (28A, 28B); - each prismatic electrochemical cell of the first and second sets of prismatic electrochemical cells conforming to the same manufacturing specifications including the same chemistry and the same size manufacturing specification, wherein the first housing of the first lithium ion battery module product is sized to fit a first number of the prismatic electrochemical cells, the second housing of the second lithium ion battery module product is sized to fit a second number of the prismatic electrochemical cells, and the first and second numbers of the prismatic lithium ion electrochemical cells are different; and characterized by - a component configured to interchangeably couple with a first region of the first housing of the first lithium ion battery module product and a second region of the second housing of the second lithium ion battery module product, the first and second regions having corresponding locations on the first and second housings (40A, 40B); wherein the first and second housings (40A, 40B) each comprise a pair of terminal regions (58, 60) and a pair of terminals (70, 72) located in the pair of terminal regions (58, 60), the respective pairs of terminal regions (58, 60) of the first lithium ion battery module product and the second lithium ion battery module product have the same size and are located in corresponding locations on the respective first and second housings (40A, 40B). - a first lithium ion battery module product comprising a first housing configured to receive a first set of prismatic electrochemical cells, the housing including a base having a first footprint; - a second lithium ion battery module product comprising a second housing configured to receive a second set of prismatic electrochemical cells, the second housing including a base having a second footprint that is substantially the same as the first footprint, wherein a height (H1, H2) of the first and second housings (40A, 40B) is different for each of the first and second lithium ion battery module products (28A, 28B); - each prismatic electrochemical cell of the first and second sets of prismatic electrochemical cells conforming to the same manufacturing specifications including the same chemistry and the same size manufacturing specification, wherein the first housing of the first lithium ion battery module product is sized to fit a first number of the prismatic electrochemical cells, the second housing of the second lithium ion battery module product is sized to fit a second number of the prismatic electrochemical cells, and the first and second numbers of the prismatic lithium ion electrochemical cells are different; and characterized by - a component configured to interchangeably couple with a first region of the first housing of the first lithium ion battery module product and a second region of the second housing of the second lithium ion battery module product, the first and second regions having corresponding locations on the first and second housings (40A, 40B);