Apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling the distribution or use of electricity; black boxes [data recorders]; leak detectors; leak detection apparatus and instruments; seal testing devices; leak testing apparatus; leak control instruments; battery testers; battery chargers; battery discharge apparatus; battery testing apparatus and instruments; millimeter measuring apparatus, namely, apparatus for measuring low resistance of electric current; circuit testers; electric circuit testers; apparatus for measuring, signaling and monitoring battery charge level and battery life; electronic apparatus for battery diagnosis; electronic instruments for the calibration of leak detectors; accumulator testers; automotive electrical system testers; voltmeters; automotive compression system analyzers; automotive starter testers; battery boxes; voltage limiters and dividers; voltage detectors; voltage control units; voltage stabilizers; voltage regulators; pressure monitor modules; rectifier modules; electronic charging modules; software (recorded programs); computer programs (downloadable software); computer platforms in the form of recorded or downloadable software; computer hardware and software, namely, software for providing access to databases; software for diagnostics and troubleshooting; applications for mobile devices; data processing apparatus and computers; computer interfaces; battery tester accessories; battery cables; battery adapters; power packs [batteries]; integrated circuit cards (smart cards); magnetic recording media; interactive information terminals; electric and electronic display boards; alarms; downloadable electronic publications; batteries, including electric batteries and rechargeable batteries; cell balancing devices for a battery module