Abstract: Disclosed is a battery tester comprising a computing device and a screen, the computing device being configured to display on the screen a user interface for improved battery testing; the user interface comprising a series of interfaces: a first interface comprising a plurality of icons, each of the plurality of icons corresponding to at least one of a test condition or a tester functionality; a testing interface comprising a number of instructions which update based on a user interaction with the vehicle, and wherein selection of an icon in the first interface corresponding to a test condition displays the testing interface; and a results interface, having a three-stage top navigation and summary, the three-stage top navigation for reporting battery health metrics, wherein completion of the testing interface displays a results interface.