Battery/electrical system testers The Model 6044 automated battery/electrical system tester by Associated Equipment does not use carbon piles, thereby reducing required maintenance. Users can enter the discharge current and press the start button, and the 6044 will perform the BCI battery test automatically giving the most accurate means of testing a battery. The Model 6044 includes the Model 6034 +/- 1000A AC/DC clip-on amp probe, which can also be purchased separately.