Some embodiments of the present disclosure relate to a mobile battery module for high power applications. The mobile battery module includes a case having a chamber therein, wherein one or more engagement elements are disposed on an inner surface of the case. A number of blocks removably engage the one or more engagement elements, wherein each block includes a pair of opposing sidewalls. Within each block, a number of end caps extend from the opposing sidewalls to cooperatively hold a number of respective cells there between.