In general, military unit equipment must meet high energy demands in extreme environments as well as safety needs given the close proximity to people. This application also typically has a wide temperature operating range requirement . Because the requirements for military batteries vary based on the specific end-use, sub-applications that address some of these differences are discussed in the supplementary information. Examples of military unit equipment include emergency lighting and heating, radio and GPS, respirators, jammers, night-vision and in other cases: exo-skeleton power. Cost may not be as prohibitive as in other applications .